Fan pressure



  • Wrapper around the fixed condition
  • Sets the static pressure from a definition of the total pressure and pressure drop as a function of volumetric flow rate across the patch
  • Applicable to the pressure field


The condition sets the static pressure at the patch \( p_p \) based on a specification of the total pressure, \( p_0 \), and pressure drop, \( p_d \), specified as a function of the volumetric flow rate.

\[ p_p = p_0 - p_d \]

Field file entries:

    type            fanPressure;
    file            "fanCurve";
    outOfBounds     clamp;
    direction       in;              // in | out
    p0              uniform 0;
    value           uniform 0;

    // Optional entries
    U               U;
    phi             phi;

The pressure drop is prescribed as a Foam::interpolationTable in the file given by the file entry, taking the form:

    (vfr_1  dp_1)
    (vfr_2  dp_2)
    (vfr_n  dp_n)

Further information

Source code:

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