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DeardorffDiffStress.H File Reference


Detailed Description

View DeardorffDiffStress.H
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Description
      Differential SGS Stress Equation Model
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      The DSEM uses a model version of the full balance equation for the SGS
      stress tensor to simulate the behaviour of B, hence,

          d/dt(rho*B) + div(rho*U*B) - div(muSgs*grad(B))
          =
          P - c1*rho*epsilon/k*B - 0.667*(1 - c1)*rho*epsilon*I - c2*(P - 0.333*trP*I)

      where

          k = 0.5*trB,
          epsilon = ce*k^3/2/delta,
          epsilon/k = ce*k^1/2/delta
          P = -rho*(B'L + L'B)
          muSgs = ck*rho*sqrt(k)*delta
          muEff = muSgs + mu

Source files

Definition in file DeardorffDiffStress.H.

Go to the source code of this file.

Namespaces

namespace  Foam
namespace  Foam::compressible
namespace  Foam::compressible::LESmodels

Classes

class  DeardorffDiffStress

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