Interaction Methods for the SPH Parts (Multiphase Flows, Solid Bodies) in LS-DYNA
|
|
- Ashlyn Golden
- 6 years ago
- Views:
Transcription
1 13 th Internatonal LS-DYNA Users Conference Sesson: Flud Structure Interacton Interacton Methods for the SPH Parts (Multphase Flows, Sold Bodes) n LS-DYNA Jngxao Xu, Jason Wang Lvermore Software Technology Corporaton Abstract The nterestng and complex behavour of fluds emerges manly from nteracton processes. Smooth partcles hydrodynamcs s a meshfree, Lagrangan partcle method and a smple, yet flexble method for modelng flud flows and sold bodes n a robust way. It has been appled extensvely to the multphase flows, heat conducton, hgh explosve problems and so on. In ths paper, dfferent nteracton methods avalable n the LS-DYNA for SPH parts whch have wde range of densty and materal propertes are studed and compared. Node to node contacts ft well for the nteracton between two SPH parts wth hgh densty rato, the standard SPH nterpolaton method has better accuracy around the nterfaces when two SPH parts have smlar densty and materal propertes. Dfferent nteracton approaches can be combned together n one model to reach the best results. Also the nteractons between Lagrangan elements wth SPH partcles are dscussed. Some examples are presented to show how to use dfferent approaches wth dfferent combnaton of LS-DYNA keywords. Introducton SPH s a Lagrangan method for solvng partal dfferental equatons. Essentally, the doman s dscretzed by approxmatng t by a seres of roughly equ-spaced partcles. They move and change ther propertes (such as temperature) n accordance wth a set of ordnary dfferental equatons derved from the orgnal governng PDEs. SPH was frst appled by Lucy (1977) to astrophyscal problems, and was extended by Gngold (1982). Cloutman (1991) used SPH to model hypervelocty mpacts. Lbersky and Petschk have shown that SPH can be used to model materals wth strength. In recent years t has been developed as a method for ncompressble sothermal enclosed flows by Monaghan (1994). As a Lagrangan method, the nteracton between SPH partcles and FEM elements can be easly handled by a normal node to surface contact n LS-DYNA. Because of ts ablty to handle large dstortons by avodng the need for ntensve FEM remeshng, ts reasonable precson and stablty compared wth classcal methods FEM, SPH s a compettve approach compared to fnte elements (FE) and s ncreasngly beng used n some fast-transent dynamcs problems. Several authors have proposed to couple FE and SPH whch seems a reasonable approach n order to beneft from the advantages of both formulatons. In LS-DYNA, hybrd elements that enable couplng effects between SPH partcles and FEM sold are mplemented. In ths method, hybrd elements are confgured to facltate couplng effect of sold element and smoothed partcle hydrodynamcs (SPH). Ths method can be used to adaptvely transform a Lagrangan sold Part or Part Set to SPH partcles. Also hybrd elements are defned n a computer aded engneerng (CAE) grd model as a buffer or nterface between the SPH partcles and FEM solds 1-1
2 Sesson: Flud Structure Interacton 13 th Internatonal LS-DYNA Users Conference When smulatng fluds, t s mportant to capture nteracton effects accurately n order to reproduce real world behavor. Smoothed Partcle Hydrodynamcs has shown to be a smple, yet flexble method to cope wth many flud smulaton problems n a robust way. Unfortunately, the results obtaned when usng SPH to smulate mscble fluds are severely affected, especally f densty ratos become large. In SPH, partcles have a spatal dstance covered by smooth length over whch ther propertes are smoothed by a kernel functon. Problems arse when rest denstes and masses of neghborng partcles vary wthn the smoothng length, as n such cases the smoothed quanttes of a partcle show falsfed values. The undesrable effects reach from unphyscal densty and pressure varatons to spurous and unnatural nterface tensons, as well as severe numercal nstabltes. A node to node penalty based contact was ntroduced to avod those nterface effects n LS-DYNA. We have couples of keyword optons avalable n LS-DYNA for the nteractons between SPH parts also the nteractons between SPH part and Sold part: Standard SPH nterpolaton method (normal way); Node to node penalty based contact through keyword *DEFINE_SPH_TO_SPH_COUPLING; Combnaton of both method through keyword *SECTION_SPH_INTERACTION; Node to surface contact between SPH part and Sold part; Couplng between SPH parts and sold parts through keyword *DEFINE_ADAPTIVE_SOLID_TO_SPH; Couplng between SPH partcles wth ALE elements through keyword *ALE_COUPLING_NODAL_PENALTY. Dfferent nteracton approaches can be combned together n one model to reach the best results. Some examples are demonstrated to show how to use dfferent approaches wth dfferent combnaton of LS-DYNA keywords. Standard SPH formulaton Fundamentals of the SPH method Partcles methods are based on quadrature formulas on movng partcles ( x ( t), w ( t)) P, P s the set of the partcles. x (t) s the locaton of partcle and w (t) s the weght of the partcle. The quadrature formulaton for a functon can be wrtten as: The quadrature formulaton (1) together wth the defnton of smoothng kernel leads to the defnton of the partcle approxmaton of a functon. The nterpolated value of a functon: u(x ) at poston X usng the SPH method s: Where the sum s over all partcles nsde and wthn a radus 2h, W s a splne based nterpolaton kernel of radus 2h. It mmcs the shape of a delta functon but wthout the nfnte 2 tals. It s a C functon. The kernel functon s defned as followng: 1-2 h f ( x) dx w ( t) f ( x ( t)) P ( u ( x )) w ( t) u( x ) W ( x x, h) W ( x x 1 x x, h) h h( x, y) (1) (2) (3)
3 13 th Internatonal LS-DYNA Users Conference Sesson: Flud Structure Interacton W ( x x, h) when h 0, s Drac functon, h s a functon of x and the so-called smoothng length of the kernel. And the cubc B-splne functon s defned: x and s d d ( d) C (2 d) when 0 d 1 when 1 d 2 elsewhere (4) The gradent of the functon smoothng length: u(x ) s gven by applyng the operator of dervaton on the h ( u ( x ) w u( x ) W ( x x, h) Evaluatng an nterpolated product of two functons s gven by the product of ther nterpolated values. (5) Fg 1. Support sze of 2d kennel functon Contnuty equaton and Momentum equaton The partcle approxmaton of contnuty equaton s defned as: d dt m v v W ' (6) 1-3
4 Sesson: Flud Structure Interacton 13 th Internatonal LS-DYNA Users Conference It s Gallean nvarant due to that the postons and veloctes appear only as dfferences, and has good numercal conservaton propertes. v s the velocty component at partcle. The dscretzed form of the SPH momentum equaton s developed as: dv dt m (7) ( ) W, The above formulaton ensures that stress s automatcally contnuous across materal nterfaces. Dfferent types of SPH momentum equatons can be acheved through applyng the dentty equatons nto the normal SPH momentum equaton. Symmetrc formulaton of SPH momentum equaton can reduce the errors arsng from partcle nconsstency problem. From equaton (7), the followng partcle body forces were derved: F F pressure vs cos ty m m p p W ( r, h) 2 v v 2 2 W ( r Where r x x, s the vscosty coeffcent of the flud. The pressure p are computed va the consttutve equaton: p ( ) k 0 (9) where k s the stffness of the flud and 0 s ts ntal densty. Fnally, for the acceleraton of a partcle, we have: Where, h) pressure vs cos ty external a 1/ ( F F F ) (10) external F are external forces such as body forces or forces due to contacts. (8) Multple Fluds and Sold bodes The above equatons (1)--(10) were desgned to handle sngle phase flud and can be easly extended n order to handle multple fluds and Sold bodes wth dfferent rest densty. Cares must be taken to avod the nterface nstablty due to the large densty rato across the nterfaces. Interacton through standard SPH nterpolaton As shown n Fg 2, the standard way to handle the nteractons between dfferent SPH parts s through the SPH nterpolaton functons (.e treated as one part for multple SPH fluds) and no 1-4
5 13 th Internatonal LS-DYNA Users Conference Sesson: Flud Structure Interacton contact treatments are needed on the nterfaces of the dfferent SPH parts. In SPH, partcles have a spatal dstance (smoothng length) over whch ther propertes are smoothed by a kernel functon (such as densty, pressure). Smoothed quanttes of a partcles show falsfed values when denstes and masses of neghborng partcles vary largely wthn the smoothng length. As shown n Muller et al (2005), mscble fluds wth a densty rato larger than 10 cannot be realstcally smulated f the standard SPH densty summaton s used. The reason s that n SPH, the macroscopc flow s manly governed by the densty computaton. Over or underestmatng the densty leads to erroneous pressure values, whch mght result n unnatural acceleraton caused by erroneously ntroduce pressure rato (Ihmsen et al 2011). Also lead to a spurous nterface tenson and a large gap between the fluds. The erroneous quanttes lead to undesrable effects, reachng from unphyscal densty and pressure varatons to spurous and unnatural nterface tensons, and even to severe numercal nstabltes Another ssue wth the nteracton through standard SPH nterpolaton s that dfferent SPH flud parts may stck together after the nteracton due to the SPH functon nterpolatons. To actvate ths opton, CONT parameter n *CONTROL_SPH has to be set as 0, and no contacts are allowed between those SPH parts. Part I 2h Part II Fg 2. Interacton through SPH nterpolaton (treated as one part and no contact s needed) Interacton through node to node contacts A penalty based node to node contact model s ntroduced on the nterfaces of the dfferent SPH parts. As shown n Fg 3, all the SPH nterpolatons (densty, pressure and so on) are carred out nsde the local domans of each SPH part. No spurous nterface tenson or nterfaces nstablty happened n ths model. The contact forces on the nterfaces wll be appled to the external forces as n equaton (10). 1-5
6 Sesson: Flud Structure Interacton 13 th Internatonal LS-DYNA Users Conference Fg 3. Interacton through node to node contacts In ths system, the repulsve contact force actng on partcle due to contact, s drectly proportonal to the dsplacement or overlap between partcles δ: (11) where δd2h and s the lnear-sprng constant or stffness. If the contact s modeled usng only ths lnear-sprng, no energy wll be consumed and the contact wll be ferfectly elastc. In realty, some knetc energy s dsspated n plastc deformaton, and/or converted to heat or sound energy. To account for those energy losses, a contact dampng force based on a dashpot model s also ncluded: The contact dampng force s proportonal to the relatve velocty of the contactng partcles, where the constant of proportonalty s known as the dampng coeffcent, v v 1 v2. A *DEFINE_SPH_TO_SPH_COUPLING keyword s needed between any two SPH parts for the contact nteracton, also parameter CONT n *CONTROL_SPH need to be set as 1 to deactvate the nteracton through standard nterpolaton. (12) Interacton through both normal nterpolaton method and node to node contact method n one model Combne the CONT=1 opton n *CONTROL_SPH keyword wth keyword *SECTION_SPH_INTERACTION to support the partal nteractons between SPH parts through normal nterpolaton opton and partal nteracton between SPH parts through node to node contacts n one model. All the SPH parts that are defned wth *SECTION_SPH_INTERACTION keyword wll ntegrate wth each other through normal nterpolaton method automatcally, and node to node contacts are needed for the nteractons between SPH parts defned wth *SECTION_SPH_INTERACTION keyword and other SPH 1-6
7 13 th Internatonal LS-DYNA Users Conference Sesson: Flud Structure Interacton parts, also for the nteractons between any other SPH parts that not defned through *SECTION_SPH_INTERACTION keyword. Normally, nteracton through the standard nterpolaton method produces more consstent results across the nterface when SPH parts nteracted have smlar denstes and materal propertes, however the smoothed quanttes of a partcles show falsfed values when denstes and masses of neghbourng partcles vary largely wthn the smoothng length. The erroneous quanttes lead to undesrable effects, reachng from unphyscal densty and pressure varatons to spurous and unnatural nterface tensons, and even to severe numercal nstabltes. Interacton through node to node contact allow the users to select the desred amount of contact force between two SPH parts by choosng the desred penalty scale factors accordng to the smulaton problem at hand and t help to avod the nstabltes due to large densty ratos at the nterfaces. Also for any two SPH parts wth total Lagrangan formulaton defnton, only node to node contact can be used as nteracton method, snce the neghbourng lsts are only updated at begnnng for SPH partcles wth total Lagrangan formulaton defnton. Wth *SECTION_SPH_INTERACTON keyword, users can take advantage of both nteracton methods n one model based on the SPH parts propertes as shown n Fg 4. Fg 4. Interacton through both standard nterpolaton methods and contact methods SPH couplng wth Sold elements For the normal nteracton between SPH partcles and FEA elements (Solds and Shells), node to surface contacts n LS-DYNA can be used, snce both methods are based on the Lagrangan descrpton. When modellng SPH partcles as fluds flow and FEA elements as structure n the models, the Flud Structure Interacton problems can be easly handled by the node to surface contact. Keyword *DEFINE_ADAPTIVE_SOLID_TO_SPH s used to adaptvely transform a Lagrangan sold Part or Part Set to SPH partcles, when the Lagrangan sold elements comprsng those parts fal (Shown n Fg 5). One or more SPH partcles (elements) wll be 1-7
8 Sesson: Flud Structure Interacton 13 th Internatonal LS-DYNA Users Conference generated for each faled element. The SPH partcles replacng the faled element nhert all of the propertes of the faled sold element, e.g. mass, knematc varables, and consttutve propertes. Fg 5. Transform Sold elements nto SPH partcles Wth ICPL=0, ths keyword s used for debrs smulaton, no couplng happens between newly generated SPH partcles and sold elements, user need to defne node to surface contact for the nteracton between those two parts. When ICPL=1 and IOPT=1, the newly generated SPH partcles are bonded wth sold elements as one part through the couplng (Hybrd elements). Wth ICPL=1 and IOPT=0, ths keyword s used as Hybrd Element couplng SPH wth Sold (as shown n Fg 6). Hybrd elements SPH Partcles Sold elements 1-8 Fg 6. Example of Hybrd elements a stranst layers between SPH partcles and Sold elements In ths hybrd elements method, we have the SPH formulaton whch can endure qute large deformaton and at the same tme we have the Sold meshes whch clearly descrbe the materal nterfaces. Sold elements constran SPH nodal locatons. SPH elements provde penalty force aganst sold nodal motons. Hybrd elements are used as transt layers between SPH elements and Sold elements, for a porton of grd model comprses SPH partcles because the lkelhood of endurng large deformaton, whle the rest of the model comprses FEM sold elements, hybrd elements are placed between the solds and the partcles, each hybrd element comprses two layers: sold layer and partcle layer.
9 13 th Internatonal LS-DYNA Users Conference Sesson: Flud Structure Interacton SPH couplng wth ALE, DEM methods Keyword *ALE_COUPLING_NODAL_PENALTY provdes a penalty base contact nteracton between SPH partcles and ALE materals (master segments). Also keyword *DEFINE_SPH_DE_COUPLING defnes a penalty based contact between SPH partcles and DEM partcles. Ths opton uses the node to node contacts to couple SPH solver wth dscrete element sphere (DES) solver. Examples Water, ar mpactng wth rgd rng 3D tank wth fluds whch has the dmenson of 1.0X0.8X0.01 (Fg. 7) was calculated to valdate the node to node contact n LS-DYNA for multple SPH parts wth hgh densty rato across the nterfaces. The fluds n the tank were water and ar wth ar on the top, the densty rato between those two fluds s more than Both water and ar were model wth SPH partcles. A rgd rng modeled wth cylnder shell mpacted the fluds n the tank wth the speed of 50 n Y drecton. The results from the SPH partcles were compared wth the results from the ALE method wth the same dmenson and parameters (see Fg.9 and Fg.10). In the model, automatc_ node_ to_surface contacts were used for the nteracton between ar, water partcles and rgd shells, a node to node contact was used for the nteracton between ar partcles and water partcles. The contact between two SPH partcles from dfferent parts was detected when the dstance of two partcles s less than SRAD*(sum of smooth lengths from two partcles)/2.0. SRAD s parameter ranged from 0 to 1.0 and s used to adust the detectng crtera due to ntal penetraton. The standard nteracton through SPH nterpolaton wll not work for ths case. A proper penalty scale factor has to be used for better performance. As show n Fg. 8, a double value of penalty scale factor wll cause more noses around the nterface of the two SPH fluds. The fnal deformed shape of water was comparable wth the results from ALE elements (Fg. 9). The velocty hstorys for the rgd rng from both SPH model and ALE model were plotted and compared n Fg. 10, two results were close. 1-9
10 Sesson: Flud Structure Interacton 13th Internatonal LS-DYNA Users Conference Fg 7. Problem set up of water mpact t=2.7 ms t=2.7 ms 1-10 t=5.0 ms t=5.0 ms
11 13 th Internatonal LS-DYNA Users Conference Sesson: Flud Structure Interacton Fg 8. Upper: deformaton shape for ar and water model Lower: deformaton shape wth double value of penalty scale factor Fg 9. Fnal deformaton shape from SPH model (left) compared to ALE model (rght) Fg 10. Impact velocty from SPH model (B) compared to velocty from ALE model (A) Summary We present couples of keyword optons avalable n LS-DYNA for the nteractons between SPH parts also the nteractons between SPH part and Sold part: Standard SPH nterpolaton method (normal way); Node to node penalty based contact through keyword *DEFINE_SPH_TO_SPH_COUPLING; Combnaton of both method through keyword *SECTION_SPH_INTERACTION; Node to suface contact between SPH part and Sold part; Couplng between SPH parts and sold parts through keyword *DEFINE_ADAPTIVE_SOLID_TO_SPH; Couplng between SPH partcles wth ALE elements through keyword *ALE_COUPLING_NODAL_PENALTY. Dfferent nteracton approaches can be combned together n one model to reach the best results. Some examples are 1-11
12 Sesson: Flud Structure Interacton 13 th Internatonal LS-DYNA Users Conference demonstrated to show how to use dfferent approaches wth dfferent combnaton of LS-DYNA keywords. References Jngxao Xu, Jason Wang, Node to node contacts for SPH appled to multple fluds wth large densty rato, 9th European LS-DYNA Conference L.B. Lucy, A numercal approach to the testng of the fsson hypothess, Astron. J. 82 (12) (1977) L.D. Cloutman, SPH smulatons of hypervelocty mpacts, Lawrence Lvermore Natonal Laboratory, Rep. UCRL-ID , R.A. Gngold and J.J. Monaghan, Kernel estmates as a bass for general partcle methods n hydrodynamcs, J. Comput. Phys. 46 (1982) L.D. Lbersky and A.G. Petschek, Smooth partcle hydrodynamcs wth strength of materals, New Mexco Insttute of Mnng and Technology, Socorro, NM. J.J. Monaghan, Smulatng free surface flows wth SPH, J. Comp. Phys. 110 (1994) Paul W. Cleary, Modellng confned mult-materal heat and mass flows usng SPH, Appled Mathematcal Modellng, Volume 22, Issue 12, December 1998, Pages F. OTT and E. SCHNETTER, A modfed SPH approach for fluds wth large densty dfferences, X. Y. Hu and N. A. ADAMS, A mult-phase sph method for macroscopc and mesoscopc flows, Comput. Phys. 213, 2 (2006), B. Solenthaler and R. Paarola, Densty contrast SPH Interfaces, Eurographcs/ACM SIGGRAPH symposum on Computer Anmaton, Matthas Muller, Barbara Solenthaler, Rchard Keser and Markus Gross, Partcle-Based Fludflud Interacton, Eurographcs/ACM SIGGRAPH symposum on Computer Anmaton (2005), pp , 2, 4, 6. Markus Ihmsen, Julan Bader, Gzem Aknc and Mathas Teschner, Anmaton of ar bubbles wth SPH, Internatonal Conference on Computer Graphcs Theory and Applcaton, P. A. Cundall and O. D. L. Strack, A dscrete numercal model for granular assembles (1979), Geotechnque, 29(1),
Thermal Coupling Method Between SPH Particles and Solid Elements in LS-DYNA
Thermal Coupling Method Between SPH Particles and Solid Elements in LS-DYNA Jingxiao Xu 1, Jason Wang 2 1 LSTC 2 LSTC 1 Abstract Smooth particles hydrodynamics is a meshfree, Lagrangian particle method
More informationS.P.H. : A SOLUTION TO AVOID USING EROSION CRITERION?
S.P.H. : A SOLUTION TO AVOID USING EROSION CRITERION? Célne GALLET ENSICA 1 place Emle Bloun 31056 TOULOUSE CEDEX e-mal :cgallet@ensca.fr Jean Luc LACOME DYNALIS Immeuble AEROPOLE - Bat 1 5, Avenue Albert
More informationSPH and ALE formulations for sloshing tank analysis
Int. Jnl. of Multphyscs Volume 9 Number 3 2015 209 SPH and ALE formulatons for sloshng tank analyss Jngxao Xu 1, Jason Wang 1 and Mhamed Soul*, 2 1 LSTC, Lvermore Software Technology Corp. Lvermore CA
More informationSimulation of a Ship with Partially Filled Tanks Rolling in Waves by Applying Moving Particle Semi-Implicit Method
Smulaton of a Shp wth Partally Flled Tanks Rollng n Waves by Applyng Movng Partcle Sem-Implct Method Jen-Shang Kouh Department of Engneerng Scence and Ocean Engneerng, Natonal Tawan Unversty, Tape, Tawan,
More informationModule 6: FEM for Plates and Shells Lecture 6: Finite Element Analysis of Shell
Module 6: FEM for Plates and Shells Lecture 6: Fnte Element Analyss of Shell 3 6.6. Introducton A shell s a curved surface, whch by vrtue of ther shape can wthstand both membrane and bendng forces. A shell
More informationMultiphase MPS Method for Two-Layer-Liquid Sloshing Flows in Oil-Water Separators
Proceedngs of the Twenty-eghth (08 Internatonal Ocean and Polar Engneerng Conference Sapporo, Japan, June 0-5, 08 Copyrght 08 by the Internatonal Socety of Offshore and Polar Engneers (ISOPE ISBN 978--880653-87-6;
More informationModeling, Manipulating, and Visualizing Continuous Volumetric Data: A Novel Spline-based Approach
Modelng, Manpulatng, and Vsualzng Contnuous Volumetrc Data: A Novel Splne-based Approach Jng Hua Center for Vsual Computng, Department of Computer Scence SUNY at Stony Brook Talk Outlne Introducton and
More informationS1 Note. Basis functions.
S1 Note. Bass functons. Contents Types of bass functons...1 The Fourer bass...2 B-splne bass...3 Power and type I error rates wth dfferent numbers of bass functons...4 Table S1. Smulaton results of type
More informationDeployment of a Neo-Hookean membrane: experimental and numerical analysis
Int. Jnl. of Multphyscs Volume 7 Number 1 2013 41 Deployment of a Neo-Hookean membrane: expermental and numercal analyss Essam A. Al-Bahkal 1, Fouad Erchqu 2, M. Moatamed 3 and Mhamed Soul 4, * 1 Department
More informationHermite Splines in Lie Groups as Products of Geodesics
Hermte Splnes n Le Groups as Products of Geodescs Ethan Eade Updated May 28, 2017 1 Introducton 1.1 Goal Ths document defnes a curve n the Le group G parametrzed by tme and by structural parameters n the
More informationSmoothing Spline ANOVA for variable screening
Smoothng Splne ANOVA for varable screenng a useful tool for metamodels tranng and mult-objectve optmzaton L. Rcco, E. Rgon, A. Turco Outlne RSM Introducton Possble couplng Test case MOO MOO wth Game Theory
More informationType-2 Fuzzy Non-uniform Rational B-spline Model with Type-2 Fuzzy Data
Malaysan Journal of Mathematcal Scences 11(S) Aprl : 35 46 (2017) Specal Issue: The 2nd Internatonal Conference and Workshop on Mathematcal Analyss (ICWOMA 2016) MALAYSIAN JOURNAL OF MATHEMATICAL SCIENCES
More informationLecture #15 Lecture Notes
Lecture #15 Lecture Notes The ocean water column s very much a 3-D spatal entt and we need to represent that structure n an economcal way to deal wth t n calculatons. We wll dscuss one way to do so, emprcal
More informationFinite Element Analysis of Rubber Sealing Ring Resilience Behavior Qu Jia 1,a, Chen Geng 1,b and Yang Yuwei 2,c
Advanced Materals Research Onlne: 03-06-3 ISSN: 66-8985, Vol. 705, pp 40-44 do:0.408/www.scentfc.net/amr.705.40 03 Trans Tech Publcatons, Swtzerland Fnte Element Analyss of Rubber Sealng Rng Reslence Behavor
More informationVISCOELASTIC SIMULATION OF BI-LAYER COEXTRUSION IN A SQUARE DIE: AN ANALYSIS OF VISCOUS ENCAPSULATION
VISCOELASTIC SIMULATION OF BI-LAYER COEXTRUSION IN A SQUARE DIE: AN ANALYSIS OF VISCOUS ENCAPSULATION Mahesh Gupta Mchgan Technologcal Unversty Plastc Flow, LLC Houghton, MI 49931 Hancock, MI 49930 Abstract
More informationSurface Tension Model Based on Implicit Incompressible Smoothed Particle Hydrodynamics for Fluid Simulation
Wang XK, Ban XJ, Zhang YL et al. Surface tenson model based on mplct ncompressble smoothed partcle hydrodynamcs for flud smulaton. JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY 32(6): 1186 1197 Nov. 2017.
More informationNumerical Simulations of 3D Liquid Sloshing Flows by MPS Method
Proceedngs of the Eleventh (14) Pacfc/Asa Offshore Mechancs Symposum Shangha, Chna, October 1-16, 14 Copyrght 14 by The Internatonal Socety of Offshore and Polar Engneers ISBN 978 1 88653 9-6: ISSN 1946-4X
More informationWavefront Reconstructor
A Dstrbuted Smplex B-Splne Based Wavefront Reconstructor Coen de Vsser and Mchel Verhaegen 14-12-201212 2012 Delft Unversty of Technology Contents Introducton Wavefront reconstructon usng Smplex B-Splnes
More informationA weighted least squares particle-in-cell method for solid mechanics
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING Int. J. Numer. Meth. Engng 2009; 0:1 6 [Verson: 2002/09/18 v2.02] A weghted least squares partcle-n-cell method for sold mechancs P. C. Wallstedt,
More informationMathematics 256 a course in differential equations for engineering students
Mathematcs 56 a course n dfferental equatons for engneerng students Chapter 5. More effcent methods of numercal soluton Euler s method s qute neffcent. Because the error s essentally proportonal to the
More informationSPH Method used for Flow Predictions at a Turgo Impulse Turbine: Comparison with Fluent
World Academy of Scence, Engneerng and Technology SPH Method used for Flow Predctons at a Turgo Impulse Turbne: Comparson wth Fluent Phoevos K. Koukouvns, John S. Anagnostopoulos, Dmtrs E. Papantons Abstract
More informationDesign of Structure Optimization with APDL
Desgn of Structure Optmzaton wth APDL Yanyun School of Cvl Engneerng and Archtecture, East Chna Jaotong Unversty Nanchang 330013 Chna Abstract In ths paper, the desgn process of structure optmzaton wth
More informationHigh-Boost Mesh Filtering for 3-D Shape Enhancement
Hgh-Boost Mesh Flterng for 3-D Shape Enhancement Hrokazu Yagou Λ Alexander Belyaev y Damng We z Λ y z ; ; Shape Modelng Laboratory, Unversty of Azu, Azu-Wakamatsu 965-8580 Japan y Computer Graphcs Group,
More informationOverview. Basic Setup [9] Motivation and Tasks. Modularization 2008/2/20 IMPROVED COVERAGE CONTROL USING ONLY LOCAL INFORMATION
Overvew 2 IMPROVED COVERAGE CONTROL USING ONLY LOCAL INFORMATION Introducton Mult- Smulator MASIM Theoretcal Work and Smulaton Results Concluson Jay Wagenpfel, Adran Trachte Motvaton and Tasks Basc Setup
More informationNUMERICAL SOLVING OPTIMAL CONTROL PROBLEMS BY THE METHOD OF VARIATIONS
ARPN Journal of Engneerng and Appled Scences 006-017 Asan Research Publshng Network (ARPN). All rghts reserved. NUMERICAL SOLVING OPTIMAL CONTROL PROBLEMS BY THE METHOD OF VARIATIONS Igor Grgoryev, Svetlana
More informationVirtual Noctiluca: Interaction between Light and Water using Real-time Fluid Simulation and 3D Motion Measurement
Vrtual Noctluca: Interacton between Lght and Water usng Real-tme Flud Smulaton and 3D Moton Measurement Kyouhe Ada and Norko Nagata Kwanse Gakun Unversty, School of Scence and Technology 2-1 Gakuen, Sanda,
More information2x x l. Module 3: Element Properties Lecture 4: Lagrange and Serendipity Elements
Module 3: Element Propertes Lecture : Lagrange and Serendpty Elements 5 In last lecture note, the nterpolaton functons are derved on the bass of assumed polynomal from Pascal s trangle for the fled varable.
More informationProjective Fluids. Abstract. 2 Related Work. 1 Introduction. Marcel Weiler Graduate School CE, TU Darmstadt
Marcel Weler Graduate School CE, TU Darmstadt Projectve Fluds Dan Koscher Graduate School CE, TU Darmstadt Jan Bender Computer Anmaton Group, RWTH Aachen Unversty Fgure 1: Left: Breakng dam scenaro wth
More informationFluid Structure Interaction Using the Particle Finite Element Method. Abstract
Flud Structure Interacton Usng the Partcle Fnte Element Method SR Idelsohn(1,2), E Oñate (2), F Del Pn(1) andnestor Calvo(1) (1)Internatonal Center for Computatonal Methods n Engneerng (CIMEC) Unversdad
More informationSLAM Summer School 2006 Practical 2: SLAM using Monocular Vision
SLAM Summer School 2006 Practcal 2: SLAM usng Monocular Vson Javer Cvera, Unversty of Zaragoza Andrew J. Davson, Imperal College London J.M.M Montel, Unversty of Zaragoza. josemar@unzar.es, jcvera@unzar.es,
More informationNUMERICAL SIMULATION OF WATER ENTRY OF WEDGES BASED ON THE CIP METHOD
Journal of Marne Scence and Technology, Vol., No., pp. -5 (5) DOI:.69/JMST--6- NUMERICAL SIMULATION OF WATER ENTRY OF WEDGES BASED ON THE METHOD Zhao-Yu We,, He-ye Xao, Zh-dong Wang, and Xu-Hua Sh Key
More informationSteps for Computing the Dissimilarity, Entropy, Herfindahl-Hirschman and. Accessibility (Gravity with Competition) Indices
Steps for Computng the Dssmlarty, Entropy, Herfndahl-Hrschman and Accessblty (Gravty wth Competton) Indces I. Dssmlarty Index Measurement: The followng formula can be used to measure the evenness between
More informationAnalysis of 3D Cracks in an Arbitrary Geometry with Weld Residual Stress
Analyss of 3D Cracks n an Arbtrary Geometry wth Weld Resdual Stress Greg Thorwald, Ph.D. Ted L. Anderson, Ph.D. Structural Relablty Technology, Boulder, CO Abstract Materals contanng flaws lke nclusons
More informationThermal Coupling Method Between SPH Particles and Solid Elements in LS-DYNA
Thermal Coupling Method Between SPH Particles and Solid Elements in LS-DYNA INTRODUCTION: Jingxiao Xu, Jason Wang LSTC Heat transfer is very important in many industrial and geophysical problems. Many
More informationWishing you all a Total Quality New Year!
Total Qualty Management and Sx Sgma Post Graduate Program 214-15 Sesson 4 Vnay Kumar Kalakband Assstant Professor Operatons & Systems Area 1 Wshng you all a Total Qualty New Year! Hope you acheve Sx sgma
More informationDetermining the Optimal Bandwidth Based on Multi-criterion Fusion
Proceedngs of 01 4th Internatonal Conference on Machne Learnng and Computng IPCSIT vol. 5 (01) (01) IACSIT Press, Sngapore Determnng the Optmal Bandwdth Based on Mult-crteron Fuson Ha-L Lang 1+, Xan-Mn
More informationAn Accurate Evaluation of Integrals in Convex and Non convex Polygonal Domain by Twelve Node Quadrilateral Finite Element Method
Internatonal Journal of Computatonal and Appled Mathematcs. ISSN 89-4966 Volume, Number (07), pp. 33-4 Research Inda Publcatons http://www.rpublcaton.com An Accurate Evaluaton of Integrals n Convex and
More informationComputer models of motion: Iterative calculations
Computer models o moton: Iteratve calculatons OBJECTIVES In ths actvty you wll learn how to: Create 3D box objects Update the poston o an object teratvely (repeatedly) to anmate ts moton Update the momentum
More informationVery simple computational domains can be discretized using boundary-fitted structured meshes (also called grids)
Structured meshes Very smple computatonal domans can be dscretzed usng boundary-ftted structured meshes (also called grds) The grd lnes of a Cartesan mesh are parallel to one another Structured meshes
More informationProblem Definitions and Evaluation Criteria for Computational Expensive Optimization
Problem efntons and Evaluaton Crtera for Computatonal Expensve Optmzaton B. Lu 1, Q. Chen and Q. Zhang 3, J. J. Lang 4, P. N. Suganthan, B. Y. Qu 6 1 epartment of Computng, Glyndwr Unversty, UK Faclty
More informationTopology Design using LS-TaSC Version 2 and LS-DYNA
Topology Desgn usng LS-TaSC Verson 2 and LS-DYNA Wllem Roux Lvermore Software Technology Corporaton, Lvermore, CA, USA Abstract Ths paper gves an overvew of LS-TaSC verson 2, a topology optmzaton tool
More informationHybrid particle grid fluid animation with enhanced details
Vs Comput (2013) 29:937 947 DOI 10.1007/s00371-013-0849-6 ORIGINAL ARTICLE Hybrd partcle grd flud anmaton wth enhanced detals Chang-bo Wang Qang Zhang Fan-long Kong Hong Qn Publshed onlne: 1 June 2013
More informationUser Authentication Based On Behavioral Mouse Dynamics Biometrics
User Authentcaton Based On Behavoral Mouse Dynamcs Bometrcs Chee-Hyung Yoon Danel Donghyun Km Department of Computer Scence Department of Computer Scence Stanford Unversty Stanford Unversty Stanford, CA
More informationStorm Surge and Tsunami Simulator in Oceans and Coastal Areas
Proc. Int. Conf. on Montorng, Predcton and Mtgaton of Water-Related Dsasters, Dsaster Preventon Research Insttute, Kyoto Unv. (2005) Storm Surge and Tsunam Smulator n Oceans and Coastal Areas Taro Kaknuma
More informationImprovement of Spatial Resolution Using BlockMatching Based Motion Estimation and Frame. Integration
Improvement of Spatal Resoluton Usng BlockMatchng Based Moton Estmaton and Frame Integraton Danya Suga and Takayuk Hamamoto Graduate School of Engneerng, Tokyo Unversty of Scence, 6-3-1, Nuku, Katsuska-ku,
More informationSimulation of Surface Mesh Deformation in Orthodontics by Mass-Spring Model
292 ECTI TRANSACTIONS ON ELECTRICAL ENG., ELECTRONICS, AND COMMUNICATIONS VOL.9, NO.2 August 2011 Smulaton of Surface Mesh Deformaton n Orthodontcs by Mass-Sprng Model Pathomphong Phannurat 1, Wcht Tharanon
More informationLS-TaSC Version 2.1. Willem Roux Livermore Software Technology Corporation, Livermore, CA, USA. Abstract
12 th Internatonal LS-DYNA Users Conference Optmzaton(1) LS-TaSC Verson 2.1 Wllem Roux Lvermore Software Technology Corporaton, Lvermore, CA, USA Abstract Ths paper gves an overvew of LS-TaSC verson 2.1,
More informationA COMBINED AUTOMATED GENERALIZATION MODEL OF SPATIAL ACTIVE OBJECTS
A COMBINED AUTOMATED GENERALIZATION MODEL OF SPATIAL ACTIVE OBJECTS J. Joubran Abu Daoud, Y. Doytsher Faculty of Cvl and Envronmental Engneerng Department of Transportaton and Geo-Informaton Engneerng
More informationAn inverse problem solution for post-processing of PIV data
An nverse problem soluton for post-processng of PIV data Wt Strycznewcz 1,* 1 Appled Aerodynamcs Laboratory, Insttute of Avaton, Warsaw, Poland *correspondng author: wt.strycznewcz@lot.edu.pl Abstract
More informationVibration Characteristic Analysis of Axial Fan Shell Based on ANSYS Workbench
Internatonal Conference on Logstcs Engneerng, Management and Computer Scence (LEMCS 2015) Vbraton Characterstc Analyss of Axal Fan Shell Based on ANSYS Workbench Lchun Gu College of Mechancal and Electrcal
More informationParallelism for Nested Loops with Non-uniform and Flow Dependences
Parallelsm for Nested Loops wth Non-unform and Flow Dependences Sam-Jn Jeong Dept. of Informaton & Communcaton Engneerng, Cheonan Unversty, 5, Anseo-dong, Cheonan, Chungnam, 330-80, Korea. seong@cheonan.ac.kr
More informationReproducing Works of Calder
Reproducng Works of Calder Dongkyoo Lee*, Hee-Jung Bae*, Chang Tae Km*, Dong-Chun Lee*, Dae-Hyun Jung*, Nam-Kyung Lee*, Kyoo-Ho Lee*, Nakhoon Baek**, J. Won Lee***, Kwan Woo Ryu* and James K. Hahn*** *
More informationStructured Grid Generation Via Constraint on Displacement of Internal Nodes
Internatonal Journal of Basc & Appled Scences IJBAS-IJENS Vol: 11 No: 4 79 Structured Grd Generaton Va Constrant on Dsplacement of Internal Nodes Al Ashrafzadeh, Razeh Jalalabad Abstract Structured grd
More informationDiscontinuous Galerkin methods for flow and transport problems in porous media
T COMMUNICATIONS IN NUMERICA METHODS IN ENGINEERING Commun. Numer. Meth. Engng 2; :1 6 [Verson: 2/3/22 v1.] Dscontnuous Galerkn methods for flow and transport problems n porous meda Béatrve Rvère and Mary
More informationCAD and CAE Analysis for Siphon Jet Toilet
Avalable onlne at www.scencedrect.com Physcs Proceda 19 (2011) 472 476 Internatonal Conference on Optcs n Precson Engneerng and Nanotechnology 2011 CAD and CAE Analyss for Sphon Jet Tolet Yuhua Wang a
More informationCloth Simulation. Burak Ertekin i MSc Computer Animation and Visual Effects
Cloth Smulaton Burak Ertekn 7637445 MSc Computer Anmaton and Vsual Effects November 17, 2014 1 Abstract In ths paper, we explan how to make a Cloth Smulaton usng Mass Sprng Model. We explaned the nternal
More informationFluid Animation with Dynamic Meshes
Computer Graphcs Proceedngs, Annual Conference Seres, 2006 Flud Anmaton wth Dynamc Meshes Bryan M. Klngner Bryan E. Feldman Nuttapong Chentanez James F. O Bren Unversty of Calforna, Berkeley Fgure 1: Top:
More informationA Unified Approach for Subspace Simulation of Deformable Bodies in Multiple Domains
A Unfed Approach for Subspace Smulaton of Deformable Bodes n Multple Domans Xaofeng Wu Rajadtya Mukherjee Huamn Wang he Oho State Unversty (a) Constraned deformaton (b) Deformaton after cut (c) Unconstraned
More informationActive Contours/Snakes
Actve Contours/Snakes Erkut Erdem Acknowledgement: The sldes are adapted from the sldes prepared by K. Grauman of Unversty of Texas at Austn Fttng: Edges vs. boundares Edges useful sgnal to ndcate occludng
More informationAn Iterative Solution Approach to Process Plant Layout using Mixed Integer Optimisation
17 th European Symposum on Computer Aded Process Engneerng ESCAPE17 V. Plesu and P.S. Agach (Edtors) 2007 Elsever B.V. All rghts reserved. 1 An Iteratve Soluton Approach to Process Plant Layout usng Mxed
More informationComparison of h-, p- and hp-adaptation for convective heat transfer
Computatonal Methods and Expermental Measurements XIII 495 Comparson of h-, p- and hp-adaptaton for convectve heat transfer D. W. Pepper & X. Wang Nevada Center for Advanced Computatonal Methods, Unversty
More informationQuality Improvement Algorithm for Tetrahedral Mesh Based on Optimal Delaunay Triangulation
Intellgent Informaton Management, 013, 5, 191-195 Publshed Onlne November 013 (http://www.scrp.org/journal/m) http://dx.do.org/10.36/m.013.5601 Qualty Improvement Algorthm for Tetrahedral Mesh Based on
More informationHarmonic Coordinates for Character Articulation PIXAR
Harmonc Coordnates for Character Artculaton PIXAR Pushkar Josh Mark Meyer Tony DeRose Bran Green Tom Sanock We have a complex source mesh nsde of a smpler cage mesh We want vertex deformatons appled to
More informationComputer Animation and Visualisation. Lecture 4. Rigging / Skinning
Computer Anmaton and Vsualsaton Lecture 4. Rggng / Sknnng Taku Komura Overvew Sknnng / Rggng Background knowledge Lnear Blendng How to decde weghts? Example-based Method Anatomcal models Sknnng Assume
More informationAccounting for the Use of Different Length Scale Factors in x, y and z Directions
1 Accountng for the Use of Dfferent Length Scale Factors n x, y and z Drectons Taha Soch (taha.soch@kcl.ac.uk) Imagng Scences & Bomedcal Engneerng, Kng s College London, The Rayne Insttute, St Thomas Hosptal,
More informationModeling of Airfoil Trailing Edge Flap with Immersed Boundary Method
Downloaded from orbt.dtu.dk on: Sep 27, 2018 Modelng of Arfol Tralng Edge Flap wth Immersed Boundary Method Zhu, We Jun; Shen, Wen Zhong; Sørensen, Jens Nørkær Publshed n: ICOWEOE-2011 Publcaton date:
More informationSome Advanced SPC Tools 1. Cumulative Sum Control (Cusum) Chart For the data shown in Table 9-1, the x chart can be generated.
Some Advanced SP Tools 1. umulatve Sum ontrol (usum) hart For the data shown n Table 9-1, the x chart can be generated. However, the shft taken place at sample #21 s not apparent. 92 For ths set samples,
More informationDynamic wetting property investigation of AFM tips in micro/nanoscale
Dynamc wettng property nvestgaton of AFM tps n mcro/nanoscale The wettng propertes of AFM probe tps are of concern n AFM tp related force measurement, fabrcaton, and manpulaton technques, such as dp-pen
More informationImmersed Boundary Method for the Solution of 2D Inviscid Compressible Flow Using Finite Volume Approach on Moving Cartesian Grid
Journal of Appled Flud Mechancs, Vol. 4, No. 2, Specal Issue, pp. 27-36, 2011. Avalable onlne at www.jafmonlne.net, ISSN 1735-3572, EISSN 1735-3645. Immersed Boundary Method for the Soluton of 2D Invscd
More informationProgramming in Fortran 90 : 2017/2018
Programmng n Fortran 90 : 2017/2018 Programmng n Fortran 90 : 2017/2018 Exercse 1 : Evaluaton of functon dependng on nput Wrte a program who evaluate the functon f (x,y) for any two user specfed values
More informationMeta-heuristics for Multidimensional Knapsack Problems
2012 4th Internatonal Conference on Computer Research and Development IPCSIT vol.39 (2012) (2012) IACSIT Press, Sngapore Meta-heurstcs for Multdmensonal Knapsack Problems Zhbao Man + Computer Scence Department,
More informationComplex Deformable Objects in Virtual Reality
Complex Deformable Obects n Vrtual Realty Young-Mn Kang Department of Computer Scence Pusan Natonal Unversty ymkang@pearl.cs.pusan.ac.kr Hwan-Gue Cho Department of Computer Scence Pusan Natonal Unversty
More informationAVO Modeling of Monochromatic Spherical Waves: Comparison to Band-Limited Waves
AVO Modelng of Monochromatc Sphercal Waves: Comparson to Band-Lmted Waves Charles Ursenbach* Unversty of Calgary, Calgary, AB, Canada ursenbach@crewes.org and Arnm Haase Unversty of Calgary, Calgary, AB,
More informationHigh resolution 3D Tau-p transform by matching pursuit Weiping Cao* and Warren S. Ross, Shearwater GeoServices
Hgh resoluton 3D Tau-p transform by matchng pursut Wepng Cao* and Warren S. Ross, Shearwater GeoServces Summary The 3D Tau-p transform s of vtal sgnfcance for processng sesmc data acqured wth modern wde
More informationCluster Analysis of Electrical Behavior
Journal of Computer and Communcatons, 205, 3, 88-93 Publshed Onlne May 205 n ScRes. http://www.scrp.org/ournal/cc http://dx.do.org/0.4236/cc.205.350 Cluster Analyss of Electrcal Behavor Ln Lu Ln Lu, School
More informationLECTURE : MANIFOLD LEARNING
LECTURE : MANIFOLD LEARNING Rta Osadchy Some sldes are due to L.Saul, V. C. Raykar, N. Verma Topcs PCA MDS IsoMap LLE EgenMaps Done! Dmensonalty Reducton Data representaton Inputs are real-valued vectors
More informationFitting: Deformable contours April 26 th, 2018
4/6/08 Fttng: Deformable contours Aprl 6 th, 08 Yong Jae Lee UC Davs Recap so far: Groupng and Fttng Goal: move from array of pxel values (or flter outputs) to a collecton of regons, objects, and shapes.
More informationUrbaWind, a Computational Fluid Dynamics tool to predict wind resource in urban area
UrbaWnd, a Computatonal Flud Dynamcs tool to predct wnd resource n urban area Karm FAHSSIS a, Gullaume DUPONT a, Perre LEYRONNAS a a Meteodyn, Nantes, France Presentng Author: Karm.fahsss@meteodyn.com,
More informationCOMBINED VERTEX-BASED CELL-CENTRED FINITE VOLUME METHOD FOR FLOWS IN COMPLEX GEOMETRIES
Thrd Internatonal Conference on CFD n the Mnerals and Process Industres CSIRO, Melbourne, Australa 1-1 December 3 COMBINED VERTEX-BASED CELL-CENTRED FINITE VOLUME METHOD FOR FLOWS IN COMPLEX GEOMETRIES
More informationVolume Preserving Viscoelastic Fluids with Large Deformations Using Position-based Velocity Corrections
Noname manuscrpt No. (wll be nserted by the edtor) Volume Preservng Vscoelastc Fluds wth Large Deformatons Usng Poston-based Velocty Correctons Tetsuya Takahash Yoshnor Dobash Isse Fujshro Tomoyuk Nshta
More informationX- Chart Using ANOM Approach
ISSN 1684-8403 Journal of Statstcs Volume 17, 010, pp. 3-3 Abstract X- Chart Usng ANOM Approach Gullapall Chakravarth 1 and Chaluvad Venkateswara Rao Control lmts for ndvdual measurements (X) chart are
More informationAnalysis of Continuous Beams in General
Analyss of Contnuous Beams n General Contnuous beams consdered here are prsmatc, rgdly connected to each beam segment and supported at varous ponts along the beam. onts are selected at ponts of support,
More informationNumerical Study of Interaction between Waves and Floating Body. by MPS Method
ICCM215, 14-17 th July, Auckland, NZ Numercal Study of Interacton between Waves and Floatng Body by MPS Method Y.L. Zhang 1,2, Z.Y. Tang 1,2, D.C. Wan 1,2 * 1. State Key Laboratory of Ocean Engneerng,
More informationSampling and Reconstruction with Adaptive Meshes
Publshed n the Proceedngs of the IEEE Computer Vson and Pattern Recognton Conference (CVPR 91), Lahana, HI, June, 1991, 70 75. Samplng and Reconstructon wth Adaptve Meshes Demetr Terzopoulos 1;3;4 and
More informationNAG Fortran Library Chapter Introduction. G10 Smoothing in Statistics
Introducton G10 NAG Fortran Lbrary Chapter Introducton G10 Smoothng n Statstcs Contents 1 Scope of the Chapter... 2 2 Background to the Problems... 2 2.1 Smoothng Methods... 2 2.2 Smoothng Splnes and Regresson
More informationModeling of Fillets in Thin-walled Beams Using Shell/Plate and Beam Finite. Elements
Modelng of Fllets n Thn-walled Beams Usng Shell/Plate and Beam Fnte Elements K. He Graduate Research Assstant W.D. Zhu Professor and Correspondng Author Emal: wzhu@umbc.edu; Tel: 410-455-3394 Department
More informationMULTISTAGE OPTIMIZATION OF AUTOMOTIVE CONTROL ARM THROUGH TOPOLOGY AND SHAPE OPTIMIZATION. 1 Duane Detwiler, 2 Emily Nutwell*, 2 Deepak Lokesha
6 th BETA CAE Internatonal Conference MULTISTAGE OPTIMIZATION OF AUTOMOTIVE CONTROL ARM THROUGH TOPOLOGY AND SHAPE OPTIMIZATION. 1 Duane Detwler, 2 Emly Nutwell*, 2 Deepak Lokesha 1 Honda R&D Amercas,
More informationDESIGN OF A HAPTIC DEVICE FOR EXCAVATOR EQUIPPED WITH CRUSHER
DESIGN OF A HAPTIC DEVICE FOR EXCAVATOR EQUIPPED WITH CRUSHER Kyeong Won Oh, Dongnam Km Korea Unversty, Graduate School 5Ga-1, Anam-Dong, Sungbuk-Gu, Seoul, Korea {locosk, smleast}@korea.ac.kr Jong-Hyup
More informationHelsinki University Of Technology, Systems Analysis Laboratory Mat Independent research projects in applied mathematics (3 cr)
Helsnk Unversty Of Technology, Systems Analyss Laboratory Mat-2.08 Independent research projects n appled mathematcs (3 cr) "! #$&% Antt Laukkanen 506 R ajlaukka@cc.hut.f 2 Introducton...3 2 Multattrbute
More informationNumerical investigation of free surface flood wave and solitary wave using incompressible SPH method
Journal of Hydraulc Structures J. Hydraul. Struct., 2016; 2(2):22-34 DOI: 10.22055/hs.2016.12849 Numercal nvestgaton of free surface flood wave and soltary wave usng ncompressble SPH method Mohammad Zounemat-Kerman
More informationGenetic Tuning of Fuzzy Logic Controller for a Flexible-Link Manipulator
Genetc Tunng of Fuzzy Logc Controller for a Flexble-Lnk Manpulator Lnda Zhxa Sh Mohamed B. Traba Department of Mechancal Unversty of Nevada, Las Vegas Department of Mechancal Engneerng Las Vegas, NV 89154-407
More informationContent Based Image Retrieval Using 2-D Discrete Wavelet with Texture Feature with Different Classifiers
IOSR Journal of Electroncs and Communcaton Engneerng (IOSR-JECE) e-issn: 78-834,p- ISSN: 78-8735.Volume 9, Issue, Ver. IV (Mar - Apr. 04), PP 0-07 Content Based Image Retreval Usng -D Dscrete Wavelet wth
More informationR s s f. m y s. SPH3UW Unit 7.3 Spherical Concave Mirrors Page 1 of 12. Notes
SPH3UW Unt 7.3 Sphercal Concave Mrrors Page 1 of 1 Notes Physcs Tool box Concave Mrror If the reflectng surface takes place on the nner surface of the sphercal shape so that the centre of the mrror bulges
More informationREFRACTION. a. To study the refraction of light from plane surfaces. b. To determine the index of refraction for Acrylic and Water.
Purpose Theory REFRACTION a. To study the refracton of lght from plane surfaces. b. To determne the ndex of refracton for Acrylc and Water. When a ray of lght passes from one medum nto another one of dfferent
More informationImage Representation & Visualization Basic Imaging Algorithms Shape Representation and Analysis. outline
mage Vsualzaton mage Vsualzaton mage Representaton & Vsualzaton Basc magng Algorthms Shape Representaton and Analyss outlne mage Representaton & Vsualzaton Basc magng Algorthms Shape Representaton and
More informationLearning physical Models of Robots
Learnng physcal Models of Robots Jochen Mück Technsche Unverstät Darmstadt jochen.mueck@googlemal.com Abstract In robotcs good physcal models are needed to provde approprate moton control for dfferent
More informationEfficient Neighbor Search for Particle-based Fluids
Journal of the Appled Mathematcs, Statstcs and Informatcs (JAMSI), 2 (27), No. 3 Effcent Neghbor Search for Partcle-based Fluds JURAJ ONDERIK Comenus Unversty Slovaka, Bratslava and ROMAN ĎURIKOVIČ The
More informationSimulation and Animation of Fire
Smulaton and Anmaton of Fre Overvew Presentaton n Semnar on Motvaton Methods for smulaton of fre Physcally-based Methods for 3D-Games and Medcal Applcatons Dens Stenemann partcle-based flud-based flame-based
More informationQuery Clustering Using a Hybrid Query Similarity Measure
Query clusterng usng a hybrd query smlarty measure Fu. L., Goh, D.H., & Foo, S. (2004). WSEAS Transacton on Computers, 3(3), 700-705. Query Clusterng Usng a Hybrd Query Smlarty Measure Ln Fu, Don Hoe-Lan
More informationThree dimensional CFD simulations with large displacement of the geometries using a connectivity change moving mesh approach
Engneerng wth Computers (2019) 35:397 422 https://do.org/10.1007/s00366-018-0607-5 ORIGINAL ARTICLE Three dmensonal CFD smulatons wth large dsplacement of the geometres usng a connectvty change movng mesh
More information