Description

The DESModelRegions function object computes an indicator field for detached eddy simulation (DES) turbulence calculations, where the values the indicator mean:

0 = Reynolds-averaged Navier-Stokes (RAS) regions
1 = Large eddy simulation (LES) regions

The DESModelRegions function object can only be executed for DES simulations.

Operands

Operand	Type	Location
input	-	-
output file	dat	`$FOAM_CASE/postProcessing/<FO>/<time>/<file>`
output field	volScalarField	`$FOAM_CASE/<time>/<outField>`

Usage

Example of the DESModelRegions function object by using functions sub-dictionary in system/controlDict file:

DESModelRegions1
{
    // Mandatory entries (unmodifiable)
    type            DESModelRegions;
    libs            (fieldFunctionObjects);

    // Optional entries (runtime modifiable)
    result          DESField;

    // Optional (inherited) entries
    writePrecision  8;
    writeToFile     true;
    useUserTime     true;
    region          region0;
    enabled         true;
    log             true;
    timeStart       0;
    timeEnd         1000;
    executeControl  timeStep;
    executeInterval 1;
    writeControl    timeStep;
    writeInterval   1;
}

where the entries mean:

Property	Description	Type	Required	Default
type	Type name: DESModelRegions	word	yes	-
libs	Library name: fieldFunctionObjects	word	yes	-
result	Name of DES indicator field	word	no	`<FO>`

The inherited entries are elaborated in:

Usage by the postProcess utility is not available.

Further information

Tutorial:

$FOAM_TUTORIALS/incompressible/pisoFoam/RAS/cavity

Source code:

Foam::functionObjects::DESModelRegions

History

Introduced in version v1612+

Table of Contents

Description

Operands

Usage

Further information