∇

Description

The momentumError function object computes balance terms for the steady momentum equation.

Operands

Operand Type Location
input - -
output file - -
output field volVectorField $FOAM_CASE/<time>/<file>

Usage

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

momentumError1
{
    // Mandatory entries (unmodifiable)
    type            momentumError;
    libs            (fieldFunctionObjects);

    // Optional entries (runtime modifiable)
    p               <pName>;
    U               <UName>;
    phi             <phiName>;

    // Optional (inherited) entries
    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: momentumError word yes -
libs Library name: fieldFunctionObjects word yes -
p Name of pressure field word no p
U Name of velocity field word no U
phi Name of flux field word no phi

The inherited entries are elaborated in:

Usage by the postProcess utility is not available.

Further information

Tutorial:

Source code:

API:

History:

  • Introduced in version v2006