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Mesh adaptation strategies using wall functions and low-Reynolds models

Loic Frazza 1 Adrien Loseille 1 Frédéric Alauzet 1
1 Gamma3 - Automatic mesh generation and advanced methods
Inria Saclay - Ile de France, ICD - Institut Charles Delaunay
Abstract : The scope of this paper is to determine an optimal mesh adaptation strategy to compute turbulent flows in presence of solid bodies using RANS models. To this end we propose to use additionally model specific wall functions when the low-Reynolds turbulence model is not sufficiently resolved. Such wall functions degenerate to the low-Reynolds turbulence model they mimic when the mesh size tends to 0. This significantly improves solutions on coarse initial grids and fasten computations toward the final solution.
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Contributor : Loïc Frazza <>
Submitted on : Thursday, December 20, 2018 - 2:20:56 PM
Last modification on : Thursday, March 11, 2021 - 9:42:02 PM
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  • HAL Id : hal-01962178, version 1



Loic Frazza, Adrien Loseille, Frédéric Alauzet. Mesh adaptation strategies using wall functions and low-Reynolds models. 2018 Fluid Dynamics Conference, AIAA AVIATION Forum, Jun 2018, Atlanta, United States. ⟨hal-01962178⟩



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