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Simulation des Grandes Echelles d'écoulements turbulents avec transferts de chaleur

Abstract : LES of turbulent flows with heat transfer was used within the framework of conjugate heat transfer problems. The objective of this work lies not only in identifying the various elements likely to impair temperature fluctuations estimations at the fluid/solid interface but also to introduce adequate wall modelings. The choice of a proper convection scheme for the transport of passive scalars led to the adoption of a high order upwind scheme with slope limiter. The use of classical wall models having shown some weaknesses as for the estimation of parietal temperature fluctuations, two new approaches are proposed and tested. The first one relies on a complete resolution of the Navier-Stokes equations on a refined grid close to the wall making it possible to rebuild the temperature fluctuations near the wall. The second one relies on the simultaneous and one dimensional resolution of a turbulent boundary layer equation and a variance transport equation near the wall.
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Contributor : Alexandre Chatelain <>
Submitted on : Monday, September 13, 2004 - 10:20:22 AM
Last modification on : Friday, November 6, 2020 - 4:39:39 AM
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  • HAL Id : tel-00006845, version 2




Alexandre Chatelain. Simulation des Grandes Echelles d'écoulements turbulents avec transferts de chaleur. Dynamique des Fluides [physics.flu-dyn]. Institut National Polytechnique de Grenoble - INPG, 2004. Français. ⟨tel-00006845v2⟩



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