From 5581b0ca0cf4d53593139d9d99348e846d600c3f Mon Sep 17 00:00:00 2001 From: Nijso Date: Fri, 26 Aug 2022 17:12:58 +0200 Subject: [PATCH] Update Theory.md small addition of wall model description --- _docs_v7/Theory.md | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/_docs_v7/Theory.md b/_docs_v7/Theory.md index e394ddad..e55507d8 100644 --- a/_docs_v7/Theory.md +++ b/_docs_v7/Theory.md @@ -173,6 +173,12 @@ For information on how to use turbulence models in SU2 see the [users guide](htt The edge-based finite volume discretization of flow solvers is also used in turbulence solvers. Convective fluxes are evaluated using a scalar upwind scheme (1st or 2nd order). +## Wall functions + +Available for `RANS`, `INC_RANS`. + +The wall function model of Nichols and Nelson (2004) has been implemented in the compressible and the incompressible solver, for the SA as well as the SST models. For the compressible solver, the wall function model takes into account the frictional heating of the wall according to the Crocco-Busemann relation when the wall boundary conditions is not isothermal. When the wall model is active, the value of the dimensional distance of the first node from the wall can be $$ y^+ > 5$$. When the wall model is not active, $$y^+ < 5 $$ and in addition a fine mesh is necessary close to the wall to resolve the near wall boundary layer. + --- # Species Transport #