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A Survey of Improved Techniques for Analysis of 3D Separated Flows in Automotive Aerodynamics
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English
Abstract
A study of techniques improving the expertise of three-dimensional separated flows in automotive aerodynamics from experiments has been done. First, a computer-assisted analysis technique for wall-flow visualization understanding is presented. This approach, which concerns the wall of the body, is followed by a three-dimensional reconstitution of the wake by an harmonic analysis. Finally it is completed by a numerical reconstruction of the wall total pressure field through total pressure measurements in the wake. Results of these techniques are presented for some typical Renault models and discussed.
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Citation
Chometon, F. and Gilliéron, P., "A Survey of Improved Techniques for Analysis of 3D Separated Flows in Automotive Aerodynamics," SAE Technical Paper 960680, 1996, https://doi.org/10.4271/960680.Also In
Vehicle Aerodynamics: Wind Tunnels, Cfd, Aeroacoustics, and Ground Transportation Systems
Number: SP-1145; Published: 1996-02-01
Number: SP-1145; Published: 1996-02-01
References
- Maskell E.C. Flow separation in three dimensions RAE Aero, Report 2565 1955
- Legendre R. Three-dimensional laminar flow separation La Recherche Aérospatiale No. 54 November-December 1956
- Legendre R Lignes de courant d'un écoulement permanent, décollement et séparation La Recherche Aérospatiale, No. 1977-6 327 335 1977
- Peake D.J. Phenomenological aspects of quasi-stationary controlled and uncontrolled three-dimensional flow separations AGARD Lecture Series No. 94 5.1 5.52 1978
- Chometon F. Gilliéron P. Dépouillement assisté par ordinateur des visualisations pariétales en aérodynamique (A computer-assisted analysis technique for parietal visualisation understanding) CRAS Paris 319 II 1149 1156 1994
- Artigue M. V Gautheron V. Systèmes différentiels, Etude Graphique CEDIC, Editions Fernand Nathan 1983
- Lighthill J. Attachment and separation in three-dimensional flow Laminar Boundary Layer Oxford University Press 1963
- Chometon F. Simultaneous use of oil-flow patterns and total pressure tomographies for a more complete understanding of flow structures around a car XXII FISITA Congress II SAE P-211 2.364 2.371 1988
- Onorato M. et al Drag measurement through wake anamlysis SAE paper 840302 , SP-569 85 93 1984
- Simoens S. Ayrault M. Méjean P. Reconstitution tridimensionnelle de structures turbulentes par analyse harmonique de contours plans Congress on : Visualisation et Traitement d'Images en Mécanique des Fluides University of Poitiers, France 1992
- Wallace T. Wintz P.A. An efficient three-dimensional aircraft recognition using normalised Fourier descriptors Computer Graphics and Image Processing 13 99 126 1980
- Cantaloube B. Rehbach C Calcul de la pression dans un écoulement rotationnel incompressible de fluide parfait La Recherche Aérospatiale, No. 2 March-April 57 61 1988
- Katz J. Plotkin A. Low-Speed Aerodynamics, From wing theory to panel methods Mc Graw Hill 1991