CFD studies of a 10 MW turbine equipped with trailing edge flaps
|
|
- Felix Anderson
- 5 years ago
- Views:
Transcription
1 CFD studies of a 10 MW turbine equipped with trailing edge flaps 10th EAWE PhD Seminar on Wind Energy in Europe October 2014, Orléans, France Dipl.-Ing. Eva Jost e.jost@iag.uni-stuttgart.de
2 Overview 1. Introduction 2. Objectives 3. Realisation of active flaps in CFD 1. CHIMERA technique 2. Grid deformation 4. 2D simulation and results 1. Trailing edge flap 2. Leading and trailing edge flaps 5. 3D simulation and results 6. Conclusion and outlook 2/24
3 Overview 1. Introduction 2. Objectives 3. Realisation of active flaps in CFD 1. CHIMERA technique 2. Grid deformation 4. 2D simulation and results 1. Trailing edge flap 2. Leading and trailing edge flaps 5. 3D simulation and results 6. Conclusion and outlook 3/24
4 Development in wind turbine size Figure: UpWind Final report, March 2011, 4/24
5 Theory of similarity Empirical scaling rules for wind turbines based on a similar turbine layout (tip speed ratio, profile selection, etc.) Parameter Proportionality Power ~R 2 Thrust ~R 2 Rotor mass ~R 3 Problem: Realisation of 10 to 20 MW turbines is hardly possible based on simple scaling Demand of new technologies to reduce loads, mass and load variations: Structure Control Aerodynamics Active trailing edge flaps 5/24
6 Active trailing edge flaps Reduction of dynamic load variations due to: Tower shadow Atmospheric boundary layer and turbulence Yawed inflow Basic functioning: Undisturbed inflow Disturbed inflow Ω Ω α wind wind approach velocity c, wind velocity v, rotational velocity u=ωr Figure top right: Joachim Heinz; Investigation of Piezoelectric Flaps for Load Alleviation using CFD ; M.Sc. Thesis; Riso DTU; /24
7 Overview 1. Introduction 2. Objectives 3. Realisation of active flaps in CFD 1. CHIMERA technique 2. Grid deformation 4. 2D simulation and results 1. Trailing edge flap 2. Leading and trailing edge flaps 5. 3D simulation and results 6. Conclusion and outlook 7/24
8 Overall objectives CFD simulation of 10 MW wind turbines equipped with active trailing edge flaps to: validate the potential to reduce the dynamic turbine loading in a 3D CFD environment gain knowledge of optimal flap position and sizing research the needed deflection angles investigate unsteady effects in 2D and 3D apply control concepts based on the determination of loads or inflow measurement 8/24
9 Overview 1. Introduction 2. Objectives 3. Realisation of active flaps in CFD 1. CHIMERA technique 2. Grid deformation 4. 2D simulation and results 1. Trailing edge flap 2. Leading and trailing edge flaps 5. 3D simulation and results 6. Conclusion and outlook 9/24
10 Possibilities of active flap modeling in FLOWer Based on the CHIMERA technique [1]: 1. CHIMERA-flap Overlap of two seperate grids for airfoil and flap Based on grid deformation: 2. HP-flap Airfoil grid Flap grid Deformation algorithm based on hermite polynomials [2] 3. RBF Flap Deformation algorithm based on radial basis functions [3] 10/24
11 CHIMERA flap Two completely seperate grids, which are overlaped in the transition area from airfoil to flap Small gap between airfoil to geometrically realise the movement Introduction of overlap part in the airfoil grid to insure accurate CHIMERA interpolation Airfoil Overlap Flap + Movement can easily pescribed - Two grids with a high amount of cells Computation time - CHIMERA overlap on the airfoils surface Accuracy is reduced in a highly important area 11/24
12 Grid deformation: HP and RBF flap Deformed surface generated through rotation of the flap part around defined hinge point Computation of the final grid deformation based on undeformed and deformed surface Difference between both algorithms: HP: Deformation of grid nodes calculated based on i,j,k index of structured grid grid topology restrictions RBF: Deformation of grid nodes calculated based on x,y,z coordinates no restrictions even applicable for unstructured grids 12/24
13 Grid deformation - Distribution adaption at transition airfoil to flap Gap in surface discritisation due to rotation Unaccurate results in transition area from airfoil to flap Redistribution of nodes based on two sided stretching functions + Fewer amount of grid cells Airfoil Flap Flap + No inaccuracies due to CHIMERA Airfoil - Grid topology restrictions (HP flap) Surface discritisation 13/24
14 Overview 1. Introduction 2. Objectives 3. Realisation of active flaps in CFD 1. CHIMERA technique 2. Grid deformation 4. 2D simulation and results 1. Trailing edge flap 2. Leading and trailing edge flaps 5. 3D simulation and results 6. Conclusion and outlook 14/24
15 2D Results - Comparison of c p trailing edge flap case 15/24
16 2D Results - Comparison of c p trailing and leading edge flap case Measurements: B. Lambie; Aeroelastic Investigation of a Wind Turbine Airfoil with Self- Adaptive Camber ; Doctoral thesis; TU Darmstadt; /24
17 Overview 1. Introduction 2. Objectives 3. Realisation of active flaps in CFD 1. CHIMERA technique 2. Grid deformation 4. 2D simulation and results 1. Trailing edge flap 2. Leading and trailing edge flaps 5. 3D simulation and results 6. Conclusion and outlook 17/24
18 3D Simulation of the RBF flap - DTU 10 MW reference wind turbine First functionality test in 3D to validate the setup with regard to the grid deformation and resolution in the flap area High deflection angle Large flap extension 4 different grids: blade, spinner, nacelle and background Turbulence model: Menter SST Inflow velocity v [m/s] 11.4 Rotational speed Ω [rpm] 9.6 Reynolds number Re[- ] 6.15 mio. Amount of grid cells N [-] 23.7 mio. Timestep in azimuth dφ 2 18/24
19 3D Simulation of the RBF flap - DTU 10 MW reference wind turbine Geometry of trailing edge flap: Spanwise extension: 82 to 95 % radius Chordwise extension: 10 % local chord length Static deflection angle: 10 Closed gaps between rotor blade and trailing edge flap 19/24
20 3D Results of the RBF flap - DTU 10 MW reference wind turbine Parameter without flap with flap Power [MW] Thrust [MN] Reduction of generated power caused by a to high deflection angle (increase of c w ) Vortex caused by change in circulation (red circle) Computation time: ~ 50,000 CPUh 20/24
21 Overview 1. Introduction 2. Objectives 3. Realisation of active flaps in CFD 1. CHIMERA technique 2. Grid deformation 4. 2D simulation and results 1. Trailing edge flap 2. Leading and trailing edge flaps 5. 3D simulation and results 6. Conclusion and outlook 21/24
22 Conclusion Different possibilities to realise active trailing or leading edge flaps have been examined in a 2D case: based on the CHIMERA technique: CHIMERA flap based on grid deformation (hermite polynomials): HP flap based on grid deformation (radial basis functions): RBF flap Both possibilities based on grid deformation needed enhancement in the intersection area from airfoil and flap to achieve accurate results. The RBF flap is considered favorable: less computational time than the CHIMERA flap greater variability regarding grid topology than the HP flap A 3D functionality test has been performed on the DTU 10 MW turbine in a 120 degree model in which all expected effects could be observed. 22/24
23 Outlook Extension of the redistribution algorithm for 3D cases 1st focus point: Load variations caused by the tower shadow Full 3D computations without flaps Determination of the variations in angle of attack 2D simulations to determine optimal flap deflection (steady and unsteady) Application of control algorithms Flap deflection angle as function of azimuth Based on monitoring points on the airfoil (Pitot tube, pressure taps) Based on the determination of loads 23/24
24 Sources [1] J.A. Benek; J.L. Steger; F.C. Dougherty; P.G. Buning, Arnold Engineering Development Center; Arnold AFS TN.; Chimera: A Grid-Embedding Technique ; Defense Technical Information Center; 1986 [2] K.-H. Hierholz; S. Wagner; Simulation of Fluid-Structure Interaction at the Helicopter Rotor ; ICAS 98 Proceedings; International Council of the Aeronautical Sciences; Stockholm; Sweden; and AIAA; Reston, VA; 1998 [3] M. Schuff; P. Kranzinger; Manuel Keßler; E. Krämer; Advanced CFD-CSD coupling: Generalized, high performant, radial basis function based volume mesh deformation algorithm for structured, unstructured and overlapping meshes ; 40th European Rotorcraft Forum; Southampton; UK; September /24
25 Thank you for your attention. Questions?
Keywords: CFD, aerofoil, URANS modeling, flapping, reciprocating movement
L.I. Garipova *, A.N. Kusyumov *, G. Barakos ** * Kazan National Research Technical University n.a. A.N.Tupolev, ** School of Engineering - The University of Liverpool Keywords: CFD, aerofoil, URANS modeling,
More informationCFD simulation of a 2 bladed multi megawatt wind turbine with flexible rotor connection
Journal of Physics: Conference Series PAPER OPEN ACCESS CFD simulation of a 2 bladed multi megawatt wind turbine with flexible rotor connection To cite this article: L Klein et al 2016 J. Phys.: Conf.
More informationAn investigation of unsteady 3D effects on trailing edge flaps
Journal of Physics: Conference Series PAPER OPEN ACCESS An investigation of unsteady 3D effects on trailing edge flaps To cite this article: E Jost et al 2016 J. Phys.: Conf. Ser. 753 022009 View the article
More informationNumerical Methods in Aerodynamics. Fluid Structure Interaction. Lecture 4: Fluid Structure Interaction
Fluid Structure Interaction Niels N. Sørensen Professor MSO, Ph.D. Department of Civil Engineering, Alborg University & Wind Energy Department, Risø National Laboratory Technical University of Denmark
More informationFLUID DYNAMICS ANALYSIS OF A COUNTER ROTATING DUCTED PROPELLER
FLUID DYNAMICS ANALYSIS OF A COUNTER ROTATING DUCTED PROPELLER Chao Xu, Cees Bil, Sherman CP. Cheung School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University Keywords: Twin counter-rotating
More informationChapter 7 Trailing and Leading Edge Flaps for Load Alleviation and Structure Control
Chapter 7 Trailing and Leading Edge Flaps for Load Alleviation and Structure Control Vladimir Leble and George N. Barakos Abstract This chapter presents the results of numerical computations for a 10-
More informationDYNAMICS OF A VORTEX RING AROUND A MAIN ROTOR HELICOPTER
DYNAMICS OF A VORTEX RING AROUND A MAIN ROTOR HELICOPTER Katarzyna Surmacz Instytut Lotnictwa Keywords: VORTEX RING STATE, HELICOPTER DESCENT, NUMERICAL ANALYSIS, FLOW VISUALIZATION Abstract The main goal
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 informationNumerische Untersuchungen von Windkraftanlagen: Leistung, Wake und Steuerungsstrategien
Fachtagung Lasermethoden in der Strömungsmesstechnik 8. 10. September 2015, Dresden Numerische Untersuchungen von Windkraftanlagen: Leistung, Wake und Steuerungsstrategien Numerical Investigations of Wind
More informationTAU mesh deformation. Thomas Gerhold
TAU mesh deformation Thomas Gerhold The parallel mesh deformation of the DLR TAU-Code Introduction Mesh deformation method & Parallelization Results & Applications Conclusion & Outlook Introduction CFD
More informationUnstructured CFD for Wind Turbine Analysis
Unstructured CFD for Wind Turbine Analysis C. Eric Lynch and Marilyn Smith Daniel Guggenheim School of Aerospace Engineering Georgia Institute of Technology Atlanta, USA Wind availability: Egypt Extremely
More informationMSC Software Aeroelastic Tools. Mike Coleman and Fausto Gill di Vincenzo
MSC Software Aeroelastic Tools Mike Coleman and Fausto Gill di Vincenzo MSC Software Confidential 2 MSC Software Confidential 3 MSC Software Confidential 4 MSC Software Confidential 5 MSC Flightloads An
More informationIntegration of an unsteady nonlinear lifting line free wake algorithm in a wind turbine design framework
Integration of an unsteady nonlinear lifting line free wake algorithm in a wind turbine design framework Introduction D. Marten, G. Pechlivanoglou, C. N. Nayeri, C. O. Paschereit TU Berlin, Institute of
More informationThe Science of Making Torque from Wind
The Science of Making Torque from Wind Oldenburg October 9-11, 2012 Recent advances in aeroelasticity of wind turbines Spyros Voutsinas NTUA, School of Mechanical Engineering Outline 1. Aeroelasticity:
More informationAERODYNAMIC DESIGN OF FLYING WING WITH EMPHASIS ON HIGH WING LOADING
AERODYNAMIC DESIGN OF FLYING WING WITH EMPHASIS ON HIGH WING LOADING M. Figat Warsaw University of Technology Keywords: Aerodynamic design, CFD Abstract This paper presents an aerodynamic design process
More informationApplication of STAR-CCM+ to Helicopter Rotors in Hover
Application of STAR-CCM+ to Helicopter Rotors in Hover Lakshmi N. Sankar and Chong Zhou School of Aerospace Engineering, Georgia Institute of Technology, Atlanta, GA Ritu Marpu Eschol CD-Adapco, Inc.,
More informationEnhancement of wind turbine aerodynamic performance by a numerical optimization technique
Journal of Mechanical Science and Technology 26 (2) (202) 455~462 www.springerlink.com/content/738-494x DOI 0.007/s2206-0-035-2 Enhancement of wind turbine aerodynamic performance by a numerical optimization
More informationCharacterisation of the Unsteady Flow in the Nacelle Region of a Modern Wind Turbine
Characterisation of the Unsteady Flow in the Nacelle Region of a Modern Wind Turbine Frederik Zahle and Niels N. Sørensen Wind Energy Division, Risø National Laboratory for Sustainable Energy, DTU, DK-
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 informationRotor Performance Enhancement Using Slats on the Inner Part of a 10MW Rotor
Downloaded from orbit.dtu.dk on: Oct 05, 2018 Rotor Performance Enhancement Using Slats on the Inner Part of a 10MW Rotor Gaunaa, Mac; Zahle, Frederik; Sørensen, Niels N.; Bak, Christian; Réthoré, Pierre-Elouan
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 informationSummary of the main PROBAND project results
Summary of the main PROBAND project results WP2: WP2 was dedicated to the development and validation broadband noise prediction methods. Once validated on non rotating airfoils in WP2, these methods were
More informationMINIATURE Aerial Vehicles (MAV) are becoming
, July 3-5, 2013, London, U.K. Developing a Surrogate-Based Time-Averaged Momentum Source Model from 3D CFD Simulations of Small Scale Propellers Joseph Carroll, Member, IAENG and David Marcum Abstract
More informationDetermination of Angle of Attack (AOA) for Rotating Blades
Downloaded from orbit.dtu.dk on: Sep 1, 218 Determination of Angle of Attack (AOA) for Rotating Blades Shen, Wen Zhong; Hansen, Martin Otto Laver; Sørensen, Jens Nørkær Published in: Wind Energy Publication
More informationAn advanced RBF Morph application: coupled CFD-CSM Aeroelastic Analysis of a Full Aircraft Model and Comparison to Experimental Data
An advanced RBF Morph application: coupled CFD-CSM Aeroelastic Analysis of a Full Aircraft Model and Comparison to Experimental Data Ubaldo Cella 1 Piaggio Aero Industries, Naples, Italy Marco Evangelos
More informationDevelopment of a CFD Capability for Full Helicopter Engineering Analysis
Development of a CFD Capability for Full Helicopter Engineering Analysis George Barakos Department of Engineering University of Liverpool 5/6 April 2006 Loughborough University Collective effort of more
More informationEstimating Vertical Drag on Helicopter Fuselage during Hovering
Estimating Vertical Drag on Helicopter Fuselage during Hovering A. A. Wahab * and M.Hafiz Ismail ** Aeronautical & Automotive Dept., Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310
More informationComputational Fluid Dynamics Simulation of a Rim Driven Thruster
Computational Fluid Dynamics Simulation of a Rim Driven Thruster Aleksander J Dubas, N. W. Bressloff, H. Fangohr, S. M. Sharkh (University of Southampton) Abstract An electric rim driven thruster is a
More informationAdvanced Multi-Body Modeling of Rotor Blades Validation and Application
Advanced Multi-Body Modeling of Rotor s Validation and Application For efficient wind turbine energy production, larger rotors are required for which slender blades with increased flexibility are often
More informationAerodynamic Design Optimization of UAV Rotor Blades using a Genetic Algorithm
Aerodynamic Design Optimization of UAV Rotor Blades using a Genetic Algorithm Hak-Min Lee 1), Nahm-Keon Hur 2) and *Oh-Joon Kwon 3) 1), 3) Department of Aerospace Engineering, KAIST, Daejeon 305-600, Korea
More informationCFD Analysis of Rotor-Fuselage Aerodynamics based on a Sliding Mesh Algorithm
2 ND EUROPEAN CONFERENCE FOR AEROSPACE SCIENCES (EUCASS) CFD Analysis of Rotor-Fuselage Aerodynamics based on a Sliding Mesh Algorithm R. Steijl, G. Barakos and K. Badcock CFD Laboratory, Department of
More informationHigh fidelity CFD-CSD aeroelastic analysis of slender bladed horizontal-axis wind turbine
Journal of Physics: Conference Series PAPER OPEN ACCESS High fidelity CFD-CSD aeroelastic analysis of slender bladed horizontal-axis wind turbine To cite this article: M. Sayed et al 2016 J. Phys.: Conf.
More informationAPPLIED CFD FOR ANALYSING AERODYNAMIC FLOWS AROUND HELICOPTERS
24 TH INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES APPLIED CFD FOR ANALYSING AERODYNAMIC FLOWS AROUND HELICOPTERS Philippe Beaumier, Jean-Marc Bousquet ONERA, 92322 Châtillon, FRANCE beaumier@onera.fr
More informationNumerical analysis of the tip and root vortex position in the wake of a wind turbine
Journal of Physics: Conference Series Numerical analysis of the tip and root vortex position in the wake of a wind turbine To cite this article: S Ivanell et al 2007 J. Phys.: Conf. Ser. 75 012035 View
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 informationPotsdam Propeller Test Case (PPTC)
Second International Symposium on Marine Propulsors smp 11, Hamburg, Germany, June 2011 Workshop: Propeller performance Potsdam Propeller Test Case (PPTC) Olof Klerebrant Klasson 1, Tobias Huuva 2 1 Core
More informationCFD Study of a Darreous Vertical Axis Wind Turbine
CFD Study of a Darreous Vertical Axis Wind Turbine Md Nahid Pervez a and Wael Mokhtar b a Graduate Assistant b PhD. Assistant Professor Grand Valley State University, Grand Rapids, MI 49504 E-mail:, mokhtarw@gvsu.edu
More informationSensitivity analysis of a wind rotor blade utilizing a multi-disciplinary tool chain
Sensitivity analysis of a wind rotor blade utilizing a multi-disciplinary tool chain Christian Willberg 1, Institute of Composite Structures and Adaptive Systems; German Aerospace Center (DLR) Felix Wienke,
More informationRotorcraft Noise Prediction with Multi-disciplinary Coupling Methods. Yi Liu NIA CFD Seminar, April 10, 2012
Rotorcraft Noise Prediction with Multi-disciplinary Coupling Methods Yi Liu NIA CFD Seminar, April 10, 2012 Outline Introduction and Background Multi-disciplinary Analysis Approaches Computational Fluid
More informationAn evaluation of several methods of determining the local angle of attack on wind turbine blades
Journal of Physics: Conference Series OPEN ACCESS An evaluation of several methods of determining the local angle of attack on wind turbine blades To cite this article: S Guntur and N N Sørensen 2014 J.
More informationUWE has obtained warranties from all depositors as to their title in the material deposited and as to their right to deposit such material.
Peng, T., Yao, Y. and Zhu, Q. (2018) Slat broadband noise prediction of multi-element 30P30N airfoil by a hybrid RANS-LES method. In: 53rd 3AF International Conference on Applied Aerodynamics, Salon de
More informationNear Wake RANS Predictions of the wake Behind the MEXICO Rotor in Axial and Yawed Flow Conditions
Near Wake RANS Predictions of the wake Behind the MEXICO Rotor in Axial and Yawed Flow Conditions Niels N. Sørensen, A. Bechmann, P-E. Réthoré, F. Zahle DTU Wind Energy, Technical Uni. Denmark DK- Roskilde,
More informationANSYS Fluid Structure Interaction for Thermal Management and Aeroelasticity
ANSYS Fluid Structure Interaction for Thermal Management and Aeroelasticity Phil Stopford Duxford Air Museum 11th May 2011 2011 2010 ANSYS, Inc. All rights reserved. 1 ANSYS, Inc. Proprietary Fluid Structure
More informationSOLUTION OF AIRFOIL-FLAP CONFIGURATIONS BY USING CHIMERA GRID SYSTEM
ICAS2002 CONGRESS SOLUTION OF AIRFOIL-FLAP CONFIGURATIONS BY USING CHIMERA GRID SYSTEM Erhan Tarhan, Erdal Oktay ROKETSAN, Missile Industries, Inc., 06780 Ankara Turkey Mehmet Ş. Kavsaoğlu Middle East
More informationValidation of an Unstructured Overset Mesh Method for CFD Analysis of Store Separation D. Snyder presented by R. Fitzsimmons
Validation of an Unstructured Overset Mesh Method for CFD Analysis of Store Separation D. Snyder presented by R. Fitzsimmons Stores Separation Introduction Flight Test Expensive, high-risk, sometimes catastrophic
More informationSimulations of wind turbine rotor with vortex generators
Journal of Physics: Conference Series PAPER OPEN ACCESS Simulations of wind turbine rotor with vortex generators To cite this article: Niels Troldborg et al 216 J. Phys.: Conf. Ser. 753 2257 View the article
More informationCAD-BASED WORKFLOWS. VSP Workshop 2017
CAD-BASED WORKFLOWS VSP Workshop 2017 RESEARCH IN FLIGHT COMPANY Established 2012 Primary functions are the development, marketing and support of FlightStream and the development of aerodynamic solutions
More informationAxisymmetric Viscous Flow Modeling for Meridional Flow Calculation in Aerodynamic Design of Half-Ducted Blade Rows
Memoirs of the Faculty of Engineering, Kyushu University, Vol.67, No.4, December 2007 Axisymmetric Viscous Flow Modeling for Meridional Flow alculation in Aerodynamic Design of Half-Ducted Blade Rows by
More informationDynamic stall for a Vertical Axis Wind Turbine in a two-dimensional study
Dynamic stall for a Vertical Axis Wind Turbine in a two-dimensional study R. Nobile 1,*, M. Vahdati 1, J. Barlow 1, A. Mewburn-Crook 2 1 University of Reading, Reading, UK 2 Wind Dam Renewables Ltd, Swansea,
More informationICMIEE D CFD Analysis of a Straight-bladed Vertical Axis Wind Turbine Using General Grid Interface Method
International Conference on Mechanical, Industrial and Energy Engineering 2018 23-24 December, 2018, Khulna, BANGLADESH ICMIEE18-319 2D CFD Analysis of a Straight-bladed Vertical Axis Wind Turbine Using
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 informationAPPLICATION OF A NAVIER-STOKES SOLVER TO THE ANALYSIS OF MULTIELEMENT AIRFOILS AND WINGS USING MULTIZONAL GRID TECHNIQUES
APPLICATION OF A NAVIER-STOKES SOLVER TO THE ANALYSIS OF MULTIELEMENT AIRFOILS AND WINGS USING MULTIZONAL GRID TECHNIQUES Kenneth M. Jones* NASA Langley Research Center Hampton, VA Robert T. Biedron Analytical
More informationWind tunnel experiments on a rotor model in yaw
Nord-Jan ermeer Faculty of Civil Engineering and Geosciences Stevinweg 8 CN Delft The Netherlands Tel: + 78 Fax: + 78 7 E-mail: n.vermeer@ct.tudelft.nl http://www.ct.tudelft.nl/windenergy/ivwhome.htm The
More informationUMERICAL IVESTIGATIO OF ROD VORTEX GEERATORS O HOVERIG HELICOPTER ROTOR BLADES
11th World Congress on Computational Mechanics (WCCM XI) 5th European Conference on Computational Mechanics (ECCM V) 6th European Conference on Computational Fluid Dynamics (ECFD VI) E. Oñate, J. Oliver
More informationRotorcraft Icing Simulations and a CFD Analysis of Rotors in Hover/Rotor-Fuselage Interactions
Rotorcraft Icing Simulations and a CFD Analysis of Rotors in Hover/Rotor-Fuselage Interactions M. Morelli, G. Gori, A. Guardone - Politecnico di Milano - Italy 17/09/2018 SAC Faye Storer, (2013), Royal
More informationReynolds-Averaged Navier-Stokes Simulation of a 2D Circulation Control Wind Tunnel Experiment
Reynolds-Averaged Navier-Stokes Simulation of a 2D Circulation Control Wind Tunnel Experiment Brian G. Allan, Greg S. Jones, John C. Lin NASA Langley Research Center, Hampton, VA Numerical simulations
More informationAeroelastic stability of idling wind turbines
https://doi.org/10.5194/wes-2-415-2017 Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License. Aeroelastic stability of idling wind turbines Kai Wang 1, Vasilis A.
More informationProgress and Future Prospect of CFD in Aerospace
Progress and Future Prospect of CFD in Aerospace - Observation from 30 years research - Kozo Fujii Institute of Space and Astronautical Science (ISAS) Japan Aerospace Exploration Agency (JAXA) Japan JAXA:
More informationShape Adaptive Airfoils for Turbomachinery applications: Simulation and Optimization
4 th European LS-DYNA Users Conference Optimization Shape Adaptive Airfoils for Turbomachinery applications: Simulation and Optimization Authors: Tobias Müller, Martin Lawerenz Research Assistant Professor
More informationSMALL HEIGHT DUCT DESIGN FOR MULTICOPTER FAN
SMALL HEIGHT DUCT DESIGN FOR MULTICOPTER FAN Stremousov K.*, Arkhipov M.*, Serokhvostov S.* *Moscow Institute of Physics and Technology, Department of Aeromechanics and Flight Engineering 16, Gagarina
More informationProfile Catalogue for Airfoil Sections Based on 3D Computations
Risø-R-58(EN) Profile Catalogue for Airfoil Sections Based on 3D Computations Franck Bertagnolio, Niels N. Sørensen and Jeppe Johansen Risø National Laboratory Roskilde Denmark December 26 Author: Franck
More informationAerodynamic analysis of potential use of flow control devices on helicopter rotor blades
Journal of Physics: Conference Series OPEN ACCESS Aerodynamic analysis of potential use of flow control devices on helicopter rotor blades To cite this article: F Tejero et al 2014 J. Phys.: Conf. Ser.
More informationResearch and Design working characteristics of orthogonal turbine Nguyen Quoc Tuan (1), Chu Dinh Do (2), Quach Thi Son (2)
GSJ: VOLUME 6, ISSUE 6, JUNE 018 116 Research and Design working characteristics of orthogonal turbine Nguyen Quoc Tuan (1), Chu Dinh Do (), Quach Thi Son () (1) Institute for hydro power and renewable
More informationAIAA A Computational Study of Subsonic Flows over A Medium Range Cargo Aircraft
S AIAA 23-366 A Computational Study of Subsonic Flows over A Medium Range Cargo Aircraft 2st Applied Aerodynamic Conference 23-26 June 23 Orlando, Florida For permission to copy or to republish, contact
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 informationNumerical optimization of the guide vanes of a biradial self-rectifying air turbine.
Numerical optimization of the guide vanes of a biradial self-rectifying air turbine. André Ramos Maduro email: andre.maduro@ist.utl.pt Instituto Superior Técnico, University of Lisbon,Av. Rovisco Pais,1049-001
More informationLarge Scale Aerodynamic Calculation on Pleiades
Large Scale Aerodynamic Calculation on Pleiades Thomas H. Pulliam, Dennis C. Jespesen ABSTRACT A very large scale aerodynamic calculation on the NASA Pleiades supercomputer using the three-dimensional
More informationUsage of CFX for Aeronautical Simulations
Usage of CFX for Aeronautical Simulations Florian Menter Development Manager Scientific Coordination ANSYS Germany GmbH Overview Elements of CFD Technology for aeronautical simulations: Grid generation
More informationSIMULATION OF PROPELLER-SHIP HULL INTERACTION USING AN INTEGRATED VLM/RANSE SOLVER MODELING.
SIMULATION OF PROPELLER-SHIP HULL INTERACTION USING AN INTEGRATED VLM/RANSE SOLVER MODELING. M.N.Senthil Prakash, Department of Ocean Engineering, IIT Madras, India V. Anantha Subramanian Department of
More informationPrediction of Helicopter Blade- Vortex Interaction Noise using Motion Data from Experiment
Prediction of Helicopter Blade- Vortex Interaction Noise using Motion Data from Experiment Yoshinobu Inada, Choongmo Yang, and Takashi Aoyama Computational Science Research Group (CSRG) Institute of Aerospace
More informationKeisuke Sawada. Department of Aerospace Engineering Tohoku University
March 29th, 213 : Next Generation Aircraft Workshop at Washington University Numerical Study of Wing Deformation Effect in Wind-Tunnel Testing Keisuke Sawada Department of Aerospace Engineering Tohoku
More informationCOMPUTATIONAL ANALYSIS OF A PROTOTYPE MARTIAN ROTORCRAFT EXPERIMENT
2th AIAA Applied Aerodynamics Conference 24-26 June 22, St. Louis, Missouri AIAA-22-2815 22-2815 COMPUTATIONAL ANALYSIS OF A PROTOTYPE MARTIAN ROTORCRAFT EXPERIMENT Kelly J. Corfeld * Aerospace Engineering
More informationDaedalus - A Software Package for the Design and Analysis of Airfoils
First South-East European Conference on Computational Mechanics, SEECCM-06, (M. Kojic, M. Papadrakakis (Eds.)) June 28-30, 2006, Kragujevac, Serbia and Montenegro University of Kragujevac Daedalus - A
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 informationWebinar: TwinMesh for Reliable CFD Analysis of Rotating Positive Displacement Machines
Webinar: TwinMesh for Reliable CFD Analysis of Rotating Positive Displacement Machines 14.07.2015 Dipl.-Ing. Jan Hesse Jan.hesse@cfx-berlin.de CFX Berlin Software GmbH Karl-Marx-Allee 90 A 10243 Berlin
More informationIncompressible Potential Flow. Panel Methods (3)
Incompressible Potential Flow Panel Methods (3) Outline Some Potential Theory Derivation of the Integral Equation for the Potential Classic Panel Method Program PANEL Subsonic Airfoil Aerodynamics Issues
More informationIRACST Engineering Science and Technology: An International Journal (ESTIJ), Vol. XXX, No. XXX, 2011
CFD ANALYSIS OF AN ISOLATED MAIN HELICOPTER ROTOR FOR A HOVERING FLIGHT K. M. Pandey, G. Kumar, D. Das, D. Deka, A. Surana and H. J. Das. Department of Mechanical Engineering, National Institute of Technology,
More informationAn efficient method for predicting zero-lift or boundary-layer drag including aeroelastic effects for the design environment
The Aeronautical Journal November 2015 Volume 119 No 1221 1451 An efficient method for predicting zero-lift or boundary-layer drag including aeroelastic effects for the design environment J. A. Camberos
More informationVerification and Validation of Turbulent Flow around a Clark-Y Airfoil
Verification and Validation of Turbulent Flow around a Clark-Y Airfoil 1. Purpose 58:160 Intermediate Mechanics of Fluids CFD LAB 2 By Tao Xing and Fred Stern IIHR-Hydroscience & Engineering The University
More informationViscous/Potential Flow Coupling Study for Podded Propulsors
First International Symposium on Marine Propulsors smp 09, Trondheim, Norway, June 2009 Viscous/Potential Flow Coupling Study for Podded Propulsors Eren ÖZSU 1, Ali Can TAKİNACI 2, A.Yücel ODABAŞI 3 1
More informationOPTIMISATION OF THE HELICOPTER FUSELAGE WITH SIMULATION OF MAIN AND TAIL ROTOR INFLUENCE
28 TH INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES OPTIMISATION OF THE HELICOPTER FUSELAGE WITH Wienczyslaw Stalewski*, Jerzy Zoltak* * Institute of Aviation, Poland stal@ilot.edu.pl;geor@ilotl.edu.pl
More informationPresentation summary
Nantes - 2014 Aérojoules project: Vertical axis Wind Turbine Blade Aerodynamic optimisation MICHAEL O CONNOR 1 Presentation summary I. Aérojoules project Aim of the study II. Understanding Blade aerodynamics
More informationParallelized Coupled Solver (PCS) Model Refinements & Extensions
Parallelized Coupled Solver (PCS) Model Refinements & Extensions Sven Schmitz GE Wind November 29 th, 2007 Greenville, SC University of California, Davis Schmitz GE Wind - PCS 1 Outline 2007 Parallelized
More information3D Aerodynamic Optimization of NREL VI Wind Turbine Blade for Increased Power Output and Visualization of Flow Characteristics
Dissertations and Theses Spring 2014 3D Aerodynamic Optimization of NREL VI Wind Turbine Blade for Increased Power Output and Visualization of Flow Characteristics Tsewang Rabga Shrestha Embry-Riddle Aeronautical
More informationMulti body simulations at ECN wind Coupling of ECN software
Multi body simulations at ECN wind Coupling of ECN software Feike Savenije, Koen Boorsma www.ecn.nl Outline Introduction Aero-Module - modelling - validation - usage Control Design Tool Application - SIMPACK
More informationDevelopment and application of a dynamic stall model for rotating wind turbine blades
Journal of Physics: Conference Series OPEN ACCESS Development and application of a dynamic stall model for rotating wind turbine blades To cite this article: B F Xu et al 4 J. Phys.: Conf. Ser. 54 33 View
More informationModern CFD Validation for Turbulent Flow Separation on Axisymmetric Afterbodies
Modern CFD Validation for Turbulent Flow Separation on Axisymmetric Afterbodies Dr. Kevin Disotell Postdoctoral Fellow Flow Physics and Control Branch NASA Langley Research Center kevin.j.disotell@nasa.gov
More informationModeling three-dimensional dynamic stall
Appl. Math. Mech. -Engl. Ed., 32(4), 393 400 (2011) DOI 10.1007/s10483-011-1424-6 c Shanghai University and Springer-Verlag Berlin Heidelberg 2011 Applied Mathematics and Mechanics (English Edition) Modeling
More informationCFD SIMULATIONS OF HORIZONTAL AXIS WIND TURBINE (HAWT) BLADES FOR VARIATION WITH WIND SPEED
2 nd National Conference on CFD Applications in Power and Industry Sectors January 28-29, 2009, Hydrabad, India CFD SIMULATIONS OF HORIZONTAL AXIS WIND TURBINE (HAWT) BLADES FOR VARIATION WITH WIND SPEED
More informationRAPID DESIGN AND FLOW SIMULATIONS FOR TUBOCHARGER COMPONENTS
EASC ANSYS Conference 2009 RAPID DESIGN AND FLOW SIMULATIONS FOR TUBOCHARGER COMPONENTS Authors Dipl.-Ing. Jonas Belz Dipl.-Ing. Ralph-Peter Müller CFDnetwork Engineering CFturbo Software & Engineering
More informationResearch Article A Computational Investigation of Unsteady Aerodynamics of Insect-Inspired Fixed Wing Micro Aerial Vehicle s 2D Airfoil
Advances in Aerospace Engineering, Article ID 5449, 7 pages http://dx.doi.org/1.1155/214/5449 Research Article A Computational Investigation of Unsteady Aerodynamics of Insect-Inspired Fixed Wing Micro
More informationProceedings of the ASME 2011 International Mechanical Engineering Congress & Exposition IMECE2011 November 11-17, 2011, Denver, Colorado, USA
Proceedings of the ASME 2011 International Mechanical Engineering Congress & Exposition IMECE2011 November 11-17, 2011, Denver, Colorado, USA IMECE2011-65058 THE EFFECT OF BLADE LEAN, TWIST AND BOW ON
More informationEfficient Aero-Acoustic Simulation of the HART II Rotor with the Compact Pade Scheme Gunther Wilke DLR AS-HEL Sept 6th nd ERF Lille, France
www.dlr.de Chart 1 Efficient Aero-Acoustic Simulation of the HART II Rotor with the Compact Pade Scheme Gunther Wilke DLR AS-HEL Sept 6th 2016 42nd ERF Lille, France www.dlr.de Chart 2 Overview - Motivation
More informationAIAA Using Flow Control Devices in Small Wind Tunnels
AIAA 97-1920 Using Flow Control Devices in Small Wind Tunnels R. E. Zores and H. Sobieczky DLR German Aerospace Research Establishment 28th AIAA Fluid Dynamics Conference 4th AIAA Shear Flow Control Conference
More informationAeroelastic Stability of Idling Wind Turbines
Journal of Physics: Conference Series PAPER OPEN ACCESS Aeroelastic Stability of Idling Wind Turbines To cite this article: Kai Wang et al 2016 J. Phys.: Conf. Ser. 753 042008 View the article online for
More informationTHE EFFECTS OF THE PLANFORM SHAPE ON DRAG POLAR CURVES OF WINGS: FLUID-STRUCTURE INTERACTION ANALYSES RESULTS
March 18-20, 2013 THE EFFECTS OF THE PLANFORM SHAPE ON DRAG POLAR CURVES OF WINGS: FLUID-STRUCTURE INTERACTION ANALYSES RESULTS Authors: M.R. Chiarelli, M. Ciabattari, M. Cagnoni, G. Lombardi Speaker:
More informationExtension and Validation of the CFX Cavitation Model for Sheet and Tip Vortex Cavitation on Hydrofoils
Extension and Validation of the CFX Cavitation Model for Sheet and Tip Vortex Cavitation on Hydrofoils C. Lifante, T. Frank, M. Kuntz ANSYS Germany, 83624 Otterfing Conxita.Lifante@ansys.com 2006 ANSYS,
More informationNUMERICAL SIMULATION OF 3D FLAPPING WING BASED ON CHIMERA METHOD
26 TH INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES NUMERICAL SIMULATION OF 3D FLAPPING WING Wenqing Yang, Bifeng Song, Wenping Song School of Aeronautics, Northwestern Polytechnical University,
More informationComparison of simulations on the NewMexico rotor operating in pitch fault conditions
Journal of Physics: Conference Series PAPER OPEN ACCESS Comparison of simulations on the NewMexico rotor operating in pitch fault conditions To cite this article: L Oggiano et al 2016 J. Phys.: Conf. Ser.
More informationAirfoil Computations using the - Re Model
Downloaded from orbit.dtu.dk on: Jun, 8 Airfoil Computations using the - Re Model Sørensen, Niels N. Publication date: 9 Document Version Publisher's PDF, also known as Version of record Link back to DTU
More information