Turbulent mixing length frequency

Properties

• based on the inlet-outlet condition
• sets the turbulent specific dissipation rate based on the patch turbulence kinetic energy and user-supplied mixing length

$$\omega_p = \frac{k^{0.5}}{C_{\mu}^{0.25} L}$$

• in the event of reverse flow, a zeroGradient condition is applied, i.e.

$$\frac{d \omega}{d x} = 0$$

Usage

The condition is specified in the field file using:

<patchName>
{
    type            turbulentMixingLengthFrequencyInlet;
    mixingLength    1;
    value           <field value>;

    // Optional entries
    omega           omega;
    phi             phi;
}

Further information

Source code:

• Foam::turbulentMixingLengthDissipationRateInletFvPatchScalarField