This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Experimental and Numerical Study of Leading Edge Separation on Blunt Bodies
Technical Paper
2007-01-4291
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
To get further insight in the capabilities of modern, commercial, CFD-codes for the prediction of leading edge separation a combined numerical and experimental study was performed on a blunt body of revolution with variable leading edge radius. During this study the Reynolds dependency as well as the influence of the ambient turbulence level of the incoming flow separation process was investigated. The experimental and numerical data were finally compared based on: separation point location, pressure distribution, separation bubble flow characteristics, surface oil flow patterns and the body drag coefficient. As a final result a Reynolds-Radius plot was obtained that summarizes the leading edge flow pattern under various conditions.
Recommended Content
Authors
Topic
Citation
Veldhuis, L. and Henneman, B., "Experimental and Numerical Study of Leading Edge Separation on Blunt Bodies," SAE Technical Paper 2007-01-4291, 2007, https://doi.org/10.4271/2007-01-4291.Also In
References
- Henneman, B. “Modelling of front edge flow separation on rounded bluff bodies using commercial CFD software” Delft University of Technology 2005
- Cooper, K.R. “The effect of front-edge rounding and rear-edge shaping on the aerodynamic drag of bluff vehicles in ground proximity” Technical Report SAE- 850288 1985
- Menter, F.R. Langtry, R.B. “Transition modeling for general CFD applications in Aeronautics” AIAA Technicaleport 2005-522 2005
- Hoerner, S.F. “Fluid Dynamic Drag” 2nd Hoerner Fluid Dynamics Vancouver 1965
- Hucho., W.F. “Aerodynamik des Automobiles” VDI-Verlag GmbH Dusseldorf 3 1994
- Newnham, P.S. Passmore M.A. Baxendale A. “An Experiment to Investigate the Influence of Free Stream Turbulence on Edge Radius Optimisation” Aeronautical and Automotive Engineering Loughborough University UK
- Redford, J.A. Johnson, M.W. “Predicting transitional separation bubbles” ASME GT-2004-53353, Proceedings of TurboExpo 2004 International Gas Turbine Congress 14-17 June 2004 Vienna, Austria
- Steelant, J. Modelling of Laminar-Turbulent Transistion for High Free-Stream Turbulence Technical Report 99-3790, AIAA 1999
- Suzen, Y.B. Huang P.G. “Modeling of Flow Transition Using an Intermittency Transport Equation” NASA/CR-1999-209313 September 1999
- Kapadia, S. Roy S. “Detached Eddy simulation over a reference Ahmed car model” Technical Report 2003-857, AIAA 2003
- Ahmed S.R. Ramm, G “Some Salient Features of the Time-Averaged Ground Vehicle Wake” SAE-Paper 840300 1984
- Behnia, M. Parneix, S. Shabany, Y. Durbin, P.A. “Numerical Study of Turbulent Heat Transfer in Confined and Unconined Impinging Jets” International Jounal of Heat and Fluid Flow 20 1 9 1999
- Menter F. R. “Two-Equation Eddy-viscosity Turbulence Models for Engineering Applications” AIAA Journal 32 8 August 1994
- Iaccarino, G. “Predictions of a Turbulent Separated Flow using Commercial CFD codes” Journal of Fluids Engineering 123 December 2001
- Constantinescu, G. Chapelet, M. Squires, K. “Turbulence modeling applied to Flow over a Sphere” AIAA Journal 41 9 September 2003
- ESI Group “Aerodynamic Flow Simulation Around a Commercial Vehicle using PAM-FLOW 2004 October 2003
- Krajnovic, S. Davidson L. “Large-Eddy simulation of the flow around simplified car model” Technical Report 2004-01-0227, SAE World Congress 2004
- Spalart P.R. Allmaras S.R. “A One-Equation Turbulence Model for Aerodynamic Flows” AIAA 92-0439 1992
- Boermans, L.M.M. “Aerodynamic Design” TU Delft, Faculty of Aerospace Engineering Department of Aerodynamics Delft 1998
- White, Frank M. “Viscous Fluid Flow” McGraw-Hill New York 1991
- Drela, M. “XFOIL 6.9” MIT 2001
- Analytical Methods Inc. “VSAero User Manual” 2005