![]() |
|
This file is part of OpenFOAM. OpenFOAM is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. OpenFOAM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenFOAM; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
The Isochoric dynamic Smagorinsky Model ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Algebraic eddy viscosity SGS model founded on the assumption that local equilibrium prevails, hence
B = 2/3*k*I - 2*nuEff*dev(D)
where
k = cI*delta^2*||D||^2 nuEff = cD*delta^2*||D|| + nu
In the dynamic version of the choric Smagorinsky model the coefficients cI and cD are calculated during the simulation,
cI=<K*m>/<m*m>
and
cD=<L.M>/<M.M>,
where
K = 0.5*(F(U.U) - F(U).F(U)) m = delta^2*(4*||F(D)||^2 - F(||D||^2)) L = rho*(F(U*U) - F(U)*F(U) - 0.33*K*I) M = rho*delta^2*(F(||D||*dev(D)) - 4*||F(D)||*F(dev(D)))
Definition in file dynSmagorinsky.H.
Go to the source code of this file.
Namespaces | |
namespace | Foam |
namespace | Foam::LESmodels |
Classes | |
class | dynSmagorinsky |