Duct Pulsation Problem Captured and Solved Using STAR-CCM+
|
|
- Meryl Foster
- 5 years ago
- Views:
Transcription
1 Duct Pulsation Problem Captured and Solved Using STAR-CCM+ Eric Duplain, Eng., M.Eng. (BMA) François McKenty, Eng., Ph.D. (BMA) Normand Brais, Eng., Ph.D. (BMA) John Viskup, President (Victory Energy)
2 Context Stack FGR FD FAN Fresh Air Inlet Steam out (heating) Fresh Air + FGR Duct to Burner STRONG VIBRATION Boiler MAX REACHABLE LOAD 50 % Burner 2
3 Context Less than two months left before heating season starts MUST WORK! Fan to burner ductwork evaluated by burner manufacturer as acceptable Turnaround time: two weeks! 3
4 Context Fan to burner ductwork subject From FD FAN Upstairs to severe space limitation Air flow probably not optimal Although evaluated as acceptable, ductwork must be investigated To Burner & Boiler 4
5 Context "Gregg, I took this video with my phone. The floor is shaking and it's hard to hold still. Near the end I moved the phone over to a floor mounted brace to steady the phone. You can still see the housing moving when comparing to the concrete motor base. End-Customer 5
6 Context 6
7 Problem Analysis 8 sec 9 sec 10 sec 11 sec 12 sec 23 pulsations in 4 seconds = 5.75 Hz 7
8 Problem Analysis Possible causes: Problematic fan Unstable flame in boiler Tube bank resonant frequency > 1500 rpm Vibration present EVEN without combustion Aerodynamics in ducts 8
9 Problem Analysis FD Fan 4½ x 3½ ft 4½ x 6 ft Burner/ 50 % LOAD : 37 ft/s 5.75 Hz = 6.4 ft 22 ft/s 5.75 Hz = 3.8 ft 9
10 Problem Analysis Suspect: Eddies detaching 5.75 times per second 10
11 CFD Analysis - GEOMETRY Velocity Inlet : Uniform profile Expansion joint Air/FGR duct Sharp elbow Windbox Burner Flow split outlet after burner 11
12 CFD Analysis - MESH Polyhedral mesh Base size 5 cm ( 2 in) 3 prism layer, thickness 6 mm ( ¼ in) 550k cells 12
13 CFD Analysis PHYSICS STEADY STATE Code: STAR-CCM Fluid flow: steady state Turbulence: k- model (Two-layer all y+ wall treatment) Species: air with corrected density for FGR & temperature Operating condition: 50 % LOAD Porous media to simulate burner effect on flow 13
14 CFD Analysis RESULTS BASE CASE STEADY STATE 50% LOAD : 14
15 CFD Analysis RESULTS BASE CASE STEADY STATE 50% LOAD : 15
16 CFD Analysis RESULTS BASE CASE STEADY STATE 50% LOAD : 16
17 CFD Analysis RESULTS BASE CASE STEADY STATE 50% LOAD : 17
18 CFD Analysis RESULTS STEADY STATE PRELIMINARY CONCLUSIONS: Large recirculation after sharp turn Will surely induce flow instability (turbulence) High residuals indicate transient phenomenon may be occuring Must complete analysis with transient CFD run 18
19 CFD Analysis PHYSICS TRANSIENT Code: STAR-CCM Fluid flow: transient Time step : 1/10 th of one expected cycle = Hz 10 = 17 ms 5 ms chosen for safety (given time constraint) Total time: up to 10 sec. Turbulence: k- model (Two-layer all y+ wall treatment) Species: Air with corrected density for FGR & temperature Operating conditions: 50 %, 100 % LOADS Porous media to simulate burner effect on flow 19
20 Static Pressure [in H2O] CFD Analysis RESULTS TRANSIENT Base Case 50 % LOAD Time [sec.] 20
21 Static Pressure [in H2O] CFD Analysis RESULTS TRANSIENT Base Case 100 % LOAD Time [sec.] 21
22 CFD Analysis RESULTS TRANSIENT Base Case 100 % LOAD Amplitude: ± 1 in w.c. Pulsation: 4-5 Hz 50 % LOAD Amplitude: ± 0.25 in w.c. Pulsation: 2-3 Hz 22
23 CFD Analysis RESULTS TRANSIENT Base Case Duct side wall 5 ft x 10 ft 100 % LOAD Amplitude: ± 1 in w.c. Pulsation: 4-5 Hz 520 lbs Force Enough to make duct side wall move! 50 % LOAD Amplitude: ± 0.25 in w.c. Pulsation: 2-3 Hz 130 lbs Force 23
24 CFD Analysis SOLUTION GOAL: Stabilize the flow Must break the detaching eddies OPTIONS: Re-design ducting Install turning vanes Expensive and not possible given constrained schedule Solution tried: 1 Turning vane 2 Turning vanes 3 Turning vanes 3 Turning vanes + perforated plate at windbox inlet 24
25 CFD Analysis SOLUTION 3 turning vanes + perforated plate at burner inlet Perforated plate 1 in, 1.25 in C-C, staggered 2 in w.c. FULL LOAD 3 turning vanes 25
26 CFD Analysis MESH SOLUTION Polyhedral mesh Base size 4.5 cm (1¾ in) Turning vanes 2.25 cm (0.9 in), Perforated plate 6 mm (¼ in) 5.5M cells (10X base case) 26
27 CFD Analysis RESULTS SOLUTION STEADY STATE 50 % LOAD : 27
28 CFD Analysis RESULTS SOLUTION STEADY STATE 50% LOAD : 28
29 CFD Analysis RESULTS SOLUTION STEADY STATE 50 % LOAD : 29
30 CFD Analysis RESULTS SOLUTION STEADY STATE 50 % LOAD : 30
31 Static Pressure [in H2O] CFD Analysis RESULTS SOLUTION TRANSIENT, 50 % LOAD: Time [sec.] 31
32 Static Pressure [in H2O] CFD Analysis RESULTS SOLUTION TRANSIENT, 100 % LOAD: Time [sec.] 32
33 CFD Analysis RESULTS SOLUTION TRANSIENT 100 % LOAD Amplitude: ± 0.05 in w.c. (20X smaller) Pulsation: NONE Base Case Solution 50 % LOAD Amplitude: ± in w.c. (10X smaller) Pulsation: NONE 33
34 CFD Analysis RESULTS TRANSIENT Two weeks after initial satisfactory solution! Drawings of perforated plate and turning vanes prepared and sent Installation of parts started two days later Boiler started: 100% LOAD reached without pulsation! Problem Solved End Customer Happy 34
35 Conclusions Although ductwork was supplied by a third party, Victory Energy hired BMA to conduct CFD analysis Air flow instability indicated by steady state CFD runs Pulsation phenomenon captured using transient CFD runs 2-5 Hz simulated vs Hz measured, close enough given that: Incomplete geometry provided Exact load around 50 % but unknown Proposed solution: turning vanes and perforated plate Pulsation phenomenon eliminated for all simulated loads 35
36 Conclusions Total Turnaround time between 1 st phone call, CFD study and recommendations: 2 weeks 36
37 Hardware Machines Operating System Linux default (SUSE Enterprise Server 11) CPU Type CPU Addressability CPU Count CPU Cache Physical Memory Intel(R) Xeon(R) CPU E GHz (x86_64) 64 bit 4 (4 cores/socket, Hyper-threading) KB (L2) MB 10 machines x 4 cores/machine 40 cores total Network 1 Gb Ethernet Computing Time Description Type # poly cells Iter CPU time Elapsed time Base Case Steady State h 54 min 9 min Solution Steady State h 50 min 58 min Base Case Solution Transient, 10 sec., sec. time step, 20 iter/step Transient, 10 sec., sec. time step, 20 iter/step h 6 h 9 min h 38 h 55 min 37
Mesh techniques and uncertainty for modelling impulse jetfans. O. A. (Sam) Alshroof. CFD manager Olsson Fire and Risk
Mesh techniques and uncertainty for modelling impulse jetfans O. A. (Sam) Alshroof CFD manager Olsson Fire and Risk Email: Sam.Alshroof@olssonfire.com Abstract This study presents the numerical modelling
More informationAdvances in Turbomachinery Simulation Fred Mendonça and material prepared by Chad Custer, Turbomachinery Technology Specialist
Advances in Turbomachinery Simulation Fred Mendonça and material prepared by Chad Custer, Turbomachinery Technology Specialist Usage From Across the Industry Outline Key Application Objectives Conjugate
More informationAdvanced Applications of STAR- CCM+ in Chemical Process Industry Ravindra Aglave Director, Chemical Process Industry
Advanced Applications of STAR- CCM+ in Chemical Process Industry Ravindra Aglave Director, Chemical Process Industry Outline Notable features released in 2013 Gas Liquid Flows with STAR-CCM+ Packed Bed
More informationAerodynamic Study of a Realistic Car W. TOUGERON
Aerodynamic Study of a Realistic Car W. TOUGERON Tougeron CFD Engineer 2016 Abstract This document presents an aerodynamic CFD study of a realistic car geometry. The aim is to demonstrate the efficiency
More informationSTAR-CCM+: Wind loading on buildings SPRING 2018
STAR-CCM+: Wind loading on buildings SPRING 2018 1. Notes on the software 2. Assigned exercise (submission via Blackboard; deadline: Thursday Week 3, 11 pm) 1. NOTES ON THE SOFTWARE STAR-CCM+ generates
More informationMcNair Scholars Research Journal
McNair Scholars Research Journal Volume 2 Article 1 2015 Benchmarking of Computational Models against Experimental Data for Velocity Profile Effects on CFD Analysis of Adiabatic Film-Cooling Effectiveness
More informationS-ducts and Nozzles: STAR-CCM+ at the Propulsion Aerodynamics Workshop. Peter Burns, CD-adapco
S-ducts and Nozzles: STAR-CCM+ at the Propulsion Aerodynamics Workshop Peter Burns, CD-adapco Background The Propulsion Aerodynamics Workshop (PAW) has been held twice PAW01: 2012 at the 48 th AIAA JPC
More informationDetached Eddy Simulation Analysis of a Transonic Rocket Booster for Steady & Unsteady Buffet Loads
Detached Eddy Simulation Analysis of a Transonic Rocket Booster for Steady & Unsteady Buffet Loads Matt Knapp Chief Aerodynamicist TLG Aerospace, LLC Presentation Overview Introduction to TLG Aerospace
More informationOffshore Platform Fluid Structure Interaction (FSI) Simulation
Offshore Platform Fluid Structure Interaction (FSI) Simulation Ali Marzaban, CD-adapco Murthy Lakshmiraju, CD-adapco Nigel Richardson, CD-adapco Mike Henneke, CD-adapco Guangyu Wu, Chevron Pedro M. Vargas,
More informationCoupled Analysis of FSI
Coupled Analysis of FSI Qin Yin Fan Oct. 11, 2008 Important Key Words Fluid Structure Interface = FSI Computational Fluid Dynamics = CFD Pressure Displacement Analysis = PDA Thermal Stress Analysis = TSA
More informationHigh-Lift Aerodynamics: STAR-CCM+ Applied to AIAA HiLiftWS1 D. Snyder
High-Lift Aerodynamics: STAR-CCM+ Applied to AIAA HiLiftWS1 D. Snyder Aerospace Application Areas Aerodynamics Subsonic through Hypersonic Aeroacoustics Store release & weapons bay analysis High lift devices
More informationCDA Workshop Physical & Numerical Hydraulic Modelling. STAR-CCM+ Presentation
CDA Workshop Physical & Numerical Hydraulic Modelling STAR-CCM+ Presentation ENGINEERING SIMULATION CFD FEA Mission Increase the competitiveness of companies through optimization of their product development
More informationThe digital twin in STAR-CCM+ Automated design optimization of fuel cells
The digital twin in STAR-CCM+ Automated design optimization of fuel cells Christoph Heining Why Simulate Fuel Cells Environmental Sustainability Transportation Electrification Reduce emissions Improve
More informationPRESSURE DROP AND FLOW UNIFORMITY ANALYSIS OF COMPLETE EXHAUST SYSTEMS FOR DIESEL ENGINES
PRESSURE DROP AND FLOW UNIFORMITY ANALYSIS OF COMPLETE EXHAUST SYSTEMS FOR DIESEL ENGINES André Bergel 1 Edson L. Duque 2 General Motors Global Propulsion Systems South America 12 E-mail: andrebergel84@yahoo.com.br
More informationAero-Vibro Acoustics For Wind Noise Application. David Roche and Ashok Khondge ANSYS, Inc.
Aero-Vibro Acoustics For Wind Noise Application David Roche and Ashok Khondge ANSYS, Inc. Outline 1. Wind Noise 2. Problem Description 3. Simulation Methodology 4. Results 5. Summary Thursday, October
More informationCFD Topological Optimization of a Car Water-Pump Inlet using TOSCA Fluid and STAR- CCM+
CFD Topological Optimization of a Car Water-Pump Inlet using TOSCA Fluid and STAR- CCM+ Dr. Anselm Hopf Dr. Andrew Hitchings Les Routledge Ford Motor Company CONTENTS Introduction/Motivation Optimization
More informationMissile External Aerodynamics Using Star-CCM+ Star European Conference 03/22-23/2011
Missile External Aerodynamics Using Star-CCM+ Star European Conference 03/22-23/2011 StarCCM_StarEurope_2011 4/6/11 1 Overview 2 Role of CFD in Aerodynamic Analyses Classical aerodynamics / Semi-Empirical
More informationTransition Flow and Aeroacoustic Analysis of NACA0018 Satish Kumar B, Fred Mendonç a, Ghuiyeon Kim, Hogeon Kim
Transition Flow and Aeroacoustic Analysis of NACA0018 Satish Kumar B, Fred Mendonç a, Ghuiyeon Kim, Hogeon Kim Transition Flow and Aeroacoustic Analysis of NACA0018 Satish Kumar B, Fred Mendonç a, Ghuiyeon
More informationTHE APPLICATION OF AN ATMOSPHERIC BOUNDARY LAYER TO EVALUATE TRUCK AERODYNAMICS IN CFD
THE APPLICATION OF AN ATMOSPHERIC BOUNDARY LAYER TO EVALUATE TRUCK AERODYNAMICS IN CFD A SOLUTION FOR A REAL-WORLD ENGINEERING PROBLEM Ir. Niek van Dijk DAF Trucks N.V. CONTENTS Scope & Background Theory:
More informationHealthy Buildings 2017 Europe July 2-5, 2017, Lublin, Poland
Healthy Buildings 2017 Europe July 2-5, 2017, Lublin, Poland Paper ID 0122 ISBN: 978-83-7947-232-1 Numerical Investigation of Transport and Deposition of Liquid Aerosol Particles in Indoor Environments
More informationInvestigation and Feasibility Study of Linux and Windows in the Computational Processing Power of ANSYS Software
Science Arena Publications Specialty Journal of Electronic and Computer Sciences Available online at www.sciarena.com 2017, Vol, 3 (1): 40-46 Investigation and Feasibility Study of Linux and Windows in
More informationDigital Design for Centrifugal Fans
Digital Design for Centrifugal Fans John Abbitt, Sam Lowry Department of Mechanical & Aerospace Engineering, University of Florida / Simerics, Inc. Abstract An objective in the curriculum in the Department
More informationFlow Modeling and Testing of ESPs
Flow Modeling and Testing of ESPs ICESP 2018 Charlotte, NC, USA Robert Mudry, P.E. Airflow Sciences Corporation Livonia, MI, USA rmudry@airflowsciences.com 1 Outline Introduction ESP Fluid Flow Basics
More informationCoupling STAR-CCM+ with Optimization Software IOSO by the example of axial 8-stages jet engine compressor.
Coupling STAR-CCM+ with Optimization Software IOSO by the example of axial 8-stages jet engine compressor. Folomeev V., (Sarov Engineering Center) Iakunin A., (JSC Klimov) 1 Objectives To create the procedure
More informationDrag and Lift Validation of Wing Profiles
Drag and Lift Validation of Wing Profiles STAR European Conference 2010 London By: Dr Martin van Staden Aerotherm Computational Dynamics 14th IAHR Conference December 2009 Outline of Presentation Background
More informationA study of Jumper FIV due to multiphase internal flow: understanding life-cycle fatigue. Alan Mueller & Oleg Voronkov
A study of Jumper FIV due to multiphase internal flow: understanding life-cycle fatigue Alan Mueller & Oleg Voronkov Case description Main structural dimensions [1]: deformable jumper [2] in Mixture on
More informationAccurate and Efficient Turbomachinery Simulation. Chad Custer, PhD Turbomachinery Technical Specialist
Accurate and Efficient Turbomachinery Simulation Chad Custer, PhD Turbomachinery Technical Specialist Outline Turbomachinery simulation advantages Axial fan optimization Description of design objectives
More informationInstall-It-Yourself Batch Oven Kits
Install-It-Yourself Batch Oven Kits Flexibility with standard assembled or installit-yourself ovens for preheating, drying and curing for applications up to 00 F (260 C). Durability provided from quality
More informationApplication of Modular, Rapidly Deployable CBR Filtration and Environmental Conditioning Systems for Building Collective Protection
Application of Modular, Rapidly Deployable CBR Filtration and Environmental Conditioning Systems for Building Collective Protection Carl S. Pates III, Ph.d, P.E., New World Associates John Milligan, P.E.,
More informationSTAR Global Conference 2012 Noordwijk, March 20-21, The InDesA Virtual Test Bench. Dr. Fabiano Bet Dr. Gerald Seider
STAR Global Conference 2012 Noordwijk, March 20-21, 2012 The InDesA Dr. Fabiano Bet Dr. Gerald Seider Company Profile Consulting- & Engineering Services Simulation and Analysis of complex fluid flow and
More informationTHE INFLUENCE OF MESH CHARACTERISTICS ON OPENFOAM SIMULATIONS OF THE DRIVAER MODEL
6 th BETA CAE International Conference THE INFLUENCE OF MESH CHARACTERISTICS ON OPENFOAM SIMULATIONS OF THE DRIVAER MODEL Grigoris Fotiadis *, Vangelis Skaperdas, Aristotelis Iordanidis BETA CAE Systems
More informationVirtual Temperature Cycle Test (TCT) for validation of indirect Charge Air Coolers and Exhaust Gas Recirculation Coolers
Virtual Temperature Cycle Test (TCT) for validation of indirect Charge Air Coolers and Exhaust Gas Recirculation Coolers STAR Global Conference 2014 Vienna, March 17-19 G. Apostolopoulos, R. Stauch, C.
More informationUsing STAR-CCM+ for Catalyst Utilization Analysis
Using STAR-CCM+ for Catalyst Utilization Analysis Amsterdam Netherlands March 19-21 2012 W.U. A. Leong Dunton Technical Centre Ford Motor Company S. Eroglu and S. Guryuva Gebze Engineering Ford Otosan
More informationAdvanced Computation in the design and development of aircraft engines. Serge Eury SNECMA
Advanced Computation in the design and development of aircraft engines 1 Serge Eury SNECMA Advanced Computation in the design and development of aircraft engines Introduction Some examples Conclusions
More informationBest Practices: Electronics Cooling. Ruben Bons - CD-adapco
Best Practices: Electronics Cooling Ruben Bons - CD-adapco Best Practices Outline Geometry Mesh Materials Conditions Solution Results Design exploration / Optimization Best Practices Outline Geometry Solids
More informationFundamentals of CFD and Data Center Cooling Amir Radmehr, Ph.D. Innovative Research, Inc.
Minneapolis Symposium September 30 th, 2015 Fundamentals of CFD and Data Center Cooling Amir Radmehr, Ph.D. Innovative Research, Inc. radmehr@inres.com Learning Objectives 1. Gain familiarity with Computational
More informationAxial Channel Water Jacket Cooling
28 November 2017 Motor-CAD Software Tutorial: Axial Channel Water Jacket Cooling Contents 1. Description... 1 2. Setting up the housing and axial channels... 2 3. Setting the water jacket fluid and flow
More informationIsotropic Porous Media Tutorial
STAR-CCM+ User Guide 3927 Isotropic Porous Media Tutorial This tutorial models flow through the catalyst geometry described in the introductory section. In the porous region, the theoretical pressure drop
More informationApplications of ICFD solver by LS-DYNA in Automotive Fields to Solve Fluid-Solid-Interaction (FSI) Problems
Applications of ICFD solver by LS-DYNA in Automotive Fields to Solve Fluid-Solid-Interaction (FSI) Problems George Wang(1 ), Facundo del Pin(2), Inaki Caldichoury (2), Prince Rodriguez(3), Jason Tippie
More informationThis tutorial illustrates how to set up and solve a problem involving solidification. This tutorial will demonstrate how to do the following:
Tutorial 22. Modeling Solidification Introduction This tutorial illustrates how to set up and solve a problem involving solidification. This tutorial will demonstrate how to do the following: Define a
More informationOptimizing Bio-Inspired Flow Channel Design on Bipolar Plates of PEM Fuel Cells
Excerpt from the Proceedings of the COMSOL Conference 2010 Boston Optimizing Bio-Inspired Flow Channel Design on Bipolar Plates of PEM Fuel Cells James A. Peitzmeier *1, Steven Kapturowski 2 and Xia Wang
More informationOptimization of under-relaxation factors. and Courant numbers for the simulation of. sloshing in the oil pan of an automobile
Optimization of under-relaxation factors and Courant numbers for the simulation of sloshing in the oil pan of an automobile Swathi Satish*, Mani Prithiviraj and Sridhar Hari⁰ *National Institute of Technology,
More informationInstall-It-Yourself Batch Oven Kits
Install-It-Yourself Batch Oven Kits Flexibility with standard assembled or installit-yourself ovens for preheating, drying and curing for applications up to 00 F (260 C). Durability provided from quality
More informationCFD VALIDATION FOR SURFACE COMBATANT 5415 STRAIGHT AHEAD AND STATIC DRIFT 20 DEGREE CONDITIONS USING STAR CCM+
CFD VALIDATION FOR SURFACE COMBATANT 5415 STRAIGHT AHEAD AND STATIC DRIFT 20 DEGREE CONDITIONS USING STAR CCM+ by G. J. Grigoropoulos and I..S. Kefallinou 1. Introduction and setup 1. 1 Introduction The
More informationSelf-Cultivation System
Development of a Microorganism Incubator using CFD Simulations Self-Cultivation System A comfortable mixing incubator to grow microorganism for agricultural, animal husbandry and ocean agriculture industries
More informationComputational Fluid Dynamics (CFD) Simulation in Air Duct Channels Using STAR CCM+
Available onlinewww.ejaet.com European Journal of Advances in Engineering and Technology, 2017,4 (3): 216-220 Research Article ISSN: 2394-658X Computational Fluid Dynamics (CFD) Simulation in Air Duct
More informationPutting the Spin in CFD
w h i t e p a p e r Putting the Spin in CFD insight S U M MARY Engineers who design equipment with rotating components need to analyze and understand the behavior of those components if they want to improve
More informationA Coupling Method for Hybrid CFD-CAA Simulations using a Dual Mesh Approach. Matthias Tautz
A Coupling Method for Hybrid CFD-CAA Simulations using a Dual Mesh Approach Matthias Tautz München, 21. November 2013 Content 1. Motivation Problem Description 2. Analytical Approach 3. Experiments 4.
More informationCFD Simulation of a dry Scroll Vacuum Pump including Leakage Flows
CFD Simulation of a dry Scroll Vacuum Pump including Leakage Flows Jan Hesse, Rainer Andres CFX Berlin Software GmbH, Berlin, Germany 1 Introduction Numerical simulation results of a dry scroll vacuum
More informationPressure Losses Analysis in Air Duct Flow Using Computational Fluid Dynamics (CFD)
International Academic Institute for Science and Technology International Academic Journal of Science and Engineering Vol. 3, No. 9, 2016, pp. 55-70. ISSN 2454-3896 International Academic Journal of Science
More informationCo-Simulation von Flownex und ANSYS CFX am Beispiel einer Verdrängermaschine
Co-Simulation von Flownex und ANSYS CFX am Beispiel einer Verdrängermaschine Benoit Bosc-Bierne, Dr. Andreas Spille-Kohoff, Farai Hetze CFX Berlin Software GmbH, Berlin Contents Positive displacement compressors
More informationTurbomachinery Applications with STAR-CCM+ Turbomachinery Sector Manager
Turbomachinery Applications with STAR-CCM+ Fred Mendonça Fred Mendonça Turbomachinery Sector Manager An Integrated Solution The applications of the software seem to be infinite. The user-friendly A single
More informationRecent & Upcoming Features in STAR-CCM+ for Aerospace Applications Deryl Snyder, Ph.D.
Recent & Upcoming Features in STAR-CCM+ for Aerospace Applications Deryl Snyder, Ph.D. Outline Introduction Aerospace Applications Summary New Capabilities for Aerospace Continuity Convergence Accelerator
More informationIntroduction to Computational Fluid Dynamics Mech 122 D. Fabris, K. Lynch, D. Rich
Introduction to Computational Fluid Dynamics Mech 122 D. Fabris, K. Lynch, D. Rich 1 Computational Fluid dynamics Computational fluid dynamics (CFD) is the analysis of systems involving fluid flow, heat
More informationCFD Optimisation case studies with STAR-CD and STAR-CCM+
CFD Optimisation case studies with STAR-CD and STAR-CCM+ Summary David J. Eby, Preetham Rao, Advanced Methods Group, Plymouth, MI USA Presented by Fred Mendonça, CD-adapco London, UK Outline Introduction
More informationNUMERICAL SIMULATION OF LOCAL LOSS COEFFICIENTS OF VENTILATION DUCT FITTINGS
Eleventh International IBPSA Conference Glasgow, Scotland July 7-30, 009 NUMERICAL SIMULATION OF LOCAL LOSS COEFFICIENTS OF VENTILATION DUCT FITTINGS Vladimir Zmrhal, Jan Schwarzer Department of Environmental
More informationPreliminary Spray Cooling Simulations Using a Full-Cone Water Spray
39th Dayton-Cincinnati Aerospace Sciences Symposium Preliminary Spray Cooling Simulations Using a Full-Cone Water Spray Murat Dinc Prof. Donald D. Gray (advisor), Prof. John M. Kuhlman, Nicholas L. Hillen,
More informationmidas NFX 2017R1 Release Note
Total Solution for True Analysis-driven Design midas NFX 2017R1 Release Note 1 midas NFX R E L E A S E N O T E 2 0 1 7 R 1 Major Improvements Midas NFX is an integrated finite element analysis program
More informationTrends in CFD, Engineering Analysis & Computing. ME-561 An Introduction to Computational Fluid Dynamics for Incompressible Flow Mark A.
Trends in CFD, Engineering Analysis & Computing ME-561 An Introduction to Computational Fluid Dynamics for Incompressible Flow Mark A. Christon Trends in Computer-Aided Engineering Analysis 1965 1975:
More informationCFD Modeling of a Radiator Axial Fan for Air Flow Distribution
CFD Modeling of a Radiator Axial Fan for Air Flow Distribution S. Jain, and Y. Deshpande Abstract The fluid mechanics principle is used extensively in designing axial flow fans and their associated equipment.
More informationSTAR-CCM+: Ventilation SPRING Notes on the software 2. Assigned exercise (submission via Blackboard; deadline: Thursday Week 9, 11 pm)
STAR-CCM+: Ventilation SPRING 208. Notes on the software 2. Assigned exercise (submission via Blackboard; deadline: Thursday Week 9, pm). Features of the Exercise Natural ventilation driven by localised
More informationIntroduction to C omputational F luid Dynamics. D. Murrin
Introduction to C omputational F luid Dynamics D. Murrin Computational fluid dynamics (CFD) is the science of predicting fluid flow, heat transfer, mass transfer, chemical reactions, and related phenomena
More informationSimulation of Turbulent Flow over the Ahmed Body
Simulation of Turbulent Flow over the Ahmed Body 58:160 Intermediate Mechanics of Fluids CFD LAB 4 By Timur K. Dogan, Michael Conger, Maysam Mousaviraad, and Fred Stern IIHR-Hydroscience & Engineering
More informationAtrium Smoke Movement
2014 Smoke Movement in Atrium Buildings In this example you will create a simulation of smoke movement in an atrium with and without extraction fans. This tutorial demonstrates how to: Create the atrium
More informationNUMERICAL INVESTIGATION OF THE FLOW BEHAVIOR INTO THE INLET GUIDE VANE SYSTEM (IGV)
University of West Bohemia» Department of Power System Engineering NUMERICAL INVESTIGATION OF THE FLOW BEHAVIOR INTO THE INLET GUIDE VANE SYSTEM (IGV) Publication was supported by project: Budování excelentního
More informationModeling Supersonic Jet Screech Noise Using Direct Computational Aeroacoustics (CAA) 14.5 Release
Modeling Supersonic Jet Screech Noise Using Direct Computational Aeroacoustics (CAA) 14.5 Release 2011 ANSYS, Inc. November 7, 2012 1 Workshop Advanced ANSYS FLUENT Acoustics Introduction This tutorial
More informationApplication of CFD Tools in Building Engineering and Fire Simulation
Application of CFD Tools in Building Engineering and Fire Simulation Daniel Barrero, Juan Abanto, Marcelo Reggio, J-P. Hardy, Benoît Ozell SimBuild 2004 Boulder, Colorado, USA, 4-6/8/2004 Presentation
More informationInternational Power, Electronics and Materials Engineering Conference (IPEMEC 2015)
International Power, Electronics and Materials Engineering Conference (IPEMEC 2015) Numerical Simulation of the Influence of Intake Grille Shape on the Aerodynamic Performance of a Passenger Car Longwei
More informationCFD Modelling in the Cement Industry
CFD Modelling in the Cement Industry Victor J. Turnell, P.E., Turnell Corp., USA, describes computational fluid dynamics (CFD) simulation and its benefits in applications in the cement industry. Introduction
More informationShape optimisation using breakthrough technologies
Shape optimisation using breakthrough technologies Compiled by Mike Slack Ansys Technical Services 2010 ANSYS, Inc. All rights reserved. 1 ANSYS, Inc. Proprietary Introduction Shape optimisation technologies
More informationUnique Airflow Visualization Techniques for the Design and Validation of Above-Plenum Data Center CFD Models
Unique Airflow Visualization Techniques for the Design and Validation of Above-Plenum Data Center CFD Models The MIT Faculty has made this article openly available. Please share how this access benefits
More informationIntroduction to ANSYS CFX
Workshop 03 Fluid flow around the NACA0012 Airfoil 16.0 Release Introduction to ANSYS CFX 2015 ANSYS, Inc. March 13, 2015 1 Release 16.0 Workshop Description: The flow simulated is an external aerodynamics
More informationThe viscous forces on the cylinder are proportional to the gradient of the velocity field at the
Fluid Dynamics Models : Flow Past a Cylinder Flow Past a Cylinder Introduction The flow of fluid behind a blunt body such as an automobile is difficult to compute due to the unsteady flows. The wake behind
More informationFluid-Structure Interaction in STAR-CCM+ Alan Mueller CD-adapco
Fluid-Structure Interaction in STAR-CCM+ Alan Mueller CD-adapco What is FSI? Air Interaction with a Flexible Structure What is FSI? Water/Air Interaction with a Structure Courtesy CFD Marine Courtesy Germanischer
More informationOzenCloud Case Studies
OzenCloud Case Studies Case Studies, April 20, 2015 ANSYS in the Cloud Case Studies: Aerodynamics & fluttering study on an aircraft wing using fluid structure interaction 1 Powered by UberCloud http://www.theubercloud.com
More informationProblem description. The FCBI-C element is used in the fluid part of the model.
Problem description This tutorial illustrates the use of ADINA for analyzing the fluid-structure interaction (FSI) behavior of a flexible splitter behind a 2D cylinder and the surrounding fluid in a channel.
More informationStudy Of Overloading Effects, In A Refrigerated Display Case
Study Of Overloading Effects, In A Refrigerated Display Case Sandeep Palaksha Senior CAE Engineer HUSSMANN Basavanagudi Bangalore 04, India p.sandeep@hussmann.com Narasimhamurthy CAE Engineer HUSSMANN
More informationStudy and Compare of Heat Transfer Enhancement in Interrupted Louvered Fins and Rectangular Fins
Study and Compare of Heat Transfer Enhancement in Interrupted Louvered Fins and Rectangular Fins Amit Kumar Bansal 1, Chander Kishore 2, Vikrant Chandel 3 1 Director/Principal, Shiva Institute of Engineering
More informationAmeren Seminar August 19 20, 2008 Effingham, IL
Ameren Seminar August 19 20, 2008 Effingham, IL Understanding Gas Flow to Improve ESP Performance Robert Mudry, P.E. Vice President Engineering rmudry@airflowsciences.com WPCA / Ameren Seminar August 19-20,
More informationTUTORIAL#4. Marek Jaszczur. Turbulent Thermal Boundary Layer on a Flat Plate W1-1 AGH 2018/2019
TUTORIAL#4 Turbulent Thermal Boundary Layer on a Flat Plate Marek Jaszczur AGH 2018/2019 W1-1 Problem specification TUTORIAL#4 Turbulent Thermal Boundary Layer - on a flat plate Goal: Solution for Non-isothermal
More informationEXPERIMENTAL VALIDATION OF STAR-CCM+ FOR LIQUID CONTAINER SLOSH DYNAMICS
EXPERIMENTAL VALIDATION OF STAR-CCM+ FOR LIQUID CONTAINER SLOSH DYNAMICS Brandon Marsell a.i. solutions, Launch Services Program, Kennedy Space Center, FL 1 Agenda Introduction Problem Background Experiment
More informationCalculate a solution using the pressure-based coupled solver.
Tutorial 19. Modeling Cavitation Introduction This tutorial examines the pressure-driven cavitating flow of water through a sharpedged orifice. This is a typical configuration in fuel injectors, and brings
More informationAdjoint Solver Workshop
Adjoint Solver Workshop Why is an Adjoint Solver useful? Design and manufacture for better performance: e.g. airfoil, combustor, rotor blade, ducts, body shape, etc. by optimising a certain characteristic
More informationTeam 194: Aerodynamic Study of Airflow around an Airfoil in the EGI Cloud
Team 194: Aerodynamic Study of Airflow around an Airfoil in the EGI Cloud CFD Support s OpenFOAM and UberCloud Containers enable efficient, effective, and easy access and use of MEET THE TEAM End-User/CFD
More informationTurbocharger Design & Analysis Solutions. Bill Holmes Brad Hutchinson Detroit, October 2012
Turbocharger Design & Analysis Solutions Bill Holmes Brad Hutchinson Detroit, October 2012 Agenda ANSYS overview ANSYS TurboSystem Blade row solutions The ANSYS Transformation methods An example: turbocharger
More informationTutorial 2. Modeling Periodic Flow and Heat Transfer
Tutorial 2. Modeling Periodic Flow and Heat Transfer Introduction: Many industrial applications, such as steam generation in a boiler or air cooling in the coil of an air conditioner, can be modeled as
More informationNASA Rotor 67 Validation Studies
NASA Rotor 67 Validation Studies ADS CFD is used to predict and analyze the performance of the first stage rotor (NASA Rotor 67) of a two stage transonic fan designed and tested at the NASA Glenn center
More informationThe Devil is in the Details : Understanding the impact of your design selection on the flow behavior in a Modular Liquid Sampling System
The Devil is in the Details : Understanding the impact of your design selection on the flow behavior in a Modular Liquid Sampling System Tony Bougebrayel, P.E., PhD. Parker Hannifin 1 Agenda Modular Sampling
More informationEnvironmental Noise Study of. Findlay Creek Public School Findlay Creek Drive, Ottawa, Ontario. R1. Prepared for: N45 Architecture Inc.
Environmental Noise Study of Findlay Creek Public School 3010 Findlay Creek Drive, Ottawa, Ontario. R1 Prepared for: N45 Architecture Inc. Prepared by: Eric Sladic February 5 th, 2015 Contents 1.0 Introduction...1
More informationMesh Morphing and the Adjoint Solver in ANSYS R14.0. Simon Pereira Laz Foley
Mesh Morphing and the Adjoint Solver in ANSYS R14.0 Simon Pereira Laz Foley 1 Agenda Fluent Morphing-Optimization Feature RBF Morph with ANSYS DesignXplorer Adjoint Solver What does an adjoint solver do,
More informationImpact of STAR-CCM+ v7.0 in the Automotive Industry Frederick J. Ross, CD-adapco Director, Ground Transportation
Impact of STAR-CCM+ v7.0 in the Automotive Industry Frederick J. Ross, CD-adapco Director, Ground Transportation Vehicle Simulation Components Vehicle Aerodynamics Design Studies Aeroacoustics Water/Dirt
More informationSPEED-UP GEARBOX SIMULATIONS BY INTEGRATING SCORG. Dr. Christine Klier, Sahand Saheb-Jahromi, Ludwig Berger*
SPEED-UP GEARBOX SIMULATIONS BY INTEGRATING SCORG Dr. Christine Klier, Sahand Saheb-Jahromi, Ludwig Berger* CFD SCHUCK ENGINEERING Engineering Services in computational fluid Dynamics (CFD) 25 employees
More informationSimulation of Flow Development in a Pipe
Tutorial 4. Simulation of Flow Development in a Pipe Introduction The purpose of this tutorial is to illustrate the setup and solution of a 3D turbulent fluid flow in a pipe. The pipe networks are common
More informationCOOL-COVERINGS. André Santos, The Netherlands Copyright Active Space Technologies
COOL-COVERINGS André Santos, The Netherlands 21-03-2012 Copyright Active Space Technologies 2004-2011 Young and competent company Started in 2007 in Germany, in 2004 in Portugal Role Support scientific
More informationExpress Introductory Training in ANSYS Fluent Workshop 02 Using the Discrete Phase Model (DPM)
Express Introductory Training in ANSYS Fluent Workshop 02 Using the Discrete Phase Model (DPM) Dimitrios Sofialidis Technical Manager, SimTec Ltd. Mechanical Engineer, PhD PRACE Autumn School 2013 - Industry
More informationFire and Smoke Modelling Matthieu Stasia, Fred Mendonça 24 th June 2014 CD-adapco
Fire and Smoke Modelling Matthieu Stasia, Fred Mendonça 24 th June 2014 CD-adapco Contents Overview Fire and Smoke Wizard Model settings for the Murcia Atrium Benchmark Sensitivity analysis on Murcia Atrium
More informationIndustrial wind tunnel analysis based on current modeling and future outlook
Industrial wind tunnel analysis based on current modeling and future outlook Rafael José Mateus Vicente Instituto Superior Técnico Abstract The purpose of this work is to study
More informationFloEFD 16 What s New. Alexey Kharitonovich Product Manager. Tatiana Trebunskikh Product Manager
FloEFD 16 What s New Alexey Kharitonovich Product Manager Tatiana Trebunskikh Product Manager FloEFD 16 Enhancements Phase Change for Refrigerants Flows of refrigerants with liquid to gas (cavitation/boiling)
More informationCFD Analysis of 2-D Unsteady Flow Past a Square Cylinder at an Angle of Incidence
CFD Analysis of 2-D Unsteady Flow Past a Square Cylinder at an Angle of Incidence Kavya H.P, Banjara Kotresha 2, Kishan Naik 3 Dept. of Studies in Mechanical Engineering, University BDT College of Engineering,
More informationVERIFICATION OF CAMPBELL DIAGRAMS USING ANSYS - LINFLOW AND FUNDAMENTALS OF AEROELASTIC ANALYSES
VERIFICATION OF CAMPBELL DIAGRAMS USING ANSYS - LINFLOW AND FUNDAMENTALS OF AEROELASTIC ANALYSES Olcay ÇİÇEKDAĞ - Aeronautics Eng, MSc., FİGES A.Ş. CONTENTS 1) AIM 2) STRUCTURAL VIBRATION ANALYSES 2.1)
More information