Dynamic k eqn

Note
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Properties

Model equations

The turbulence kinetic energy equation is given by:

\[ \Ddt{\rho k} = \div \left( \rho D_k \grad k \right) + \rho G - \frac{2}{3} \rho k \div \u - \frac{C_e \rho k^{1.5}}{\Delta} + S_k \]

The \( C_e \) and \( C_k \) coefficients are derived from local flow properties.

Default model coefficients

None

Initialisation

Usage

The model is specified using:

LES
{
    turbulence      on;
    LESModel        dynamicKEqn;
}

Boundary conditions

Inlet

Outlet

Walls

  • wall functions

Further information

Source code:

References:

  • Kim and Menon [29]

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