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dynSmagorinsky.H File Reference


Detailed Description

View dynSmagorinsky.H
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Description
    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)))

Source files

Definition in file dynSmagorinsky.H.

Go to the source code of this file.

Namespaces

namespace  Foam
namespace  Foam::LESmodels

Classes

class  dynSmagorinsky

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