Description
This boundary condition provides a pressure jump condition, using
the \c cyclic condition as a base.
The jump is specified as a \c Function1 type, to enable the use of, e.g.
constant, polynomial, table values. This boundary condition can operate
in two modes - standard and backward compatibility.
In standard mode, jump is specified as a function of total volumetric
flow rate through the patch. In backward compatibility mode, the boundary
conditions serves as a direct replacement for the fanFvPatchField, where
jump is defined as a function of local velocity.
Usage
\table
Property | Description | Required | Default value
patchType | underlying patch type should be \c cyclic| yes |
fanCurve | fan curve, e.g. \c csvFile | yes |
jumpTable | jump data (backward compatibility mode) | no |
reverse | reverse jump direction | no | false
phi | flux field name | no | phi
rho | density field name | no | rho
\endtable
Example of the boundary condition specification:
\verbatim
<patchName>
{
type fan;
patchType cyclic;
fanCurve csvFile;
csvFileCoeffs
{
hasHeaderLine 1;
refColumn 0;
componentColumns 1(1);
separator ",";
file "$FOAM_CASE/constant/pressureVsQ";
}
value uniform 0;
}
\endverbatim
The above example shows the use of a comma separated (CSV) file to specify
the jump condition.
Contributed by Daniel Jasinski
Resolves bug-report https://bugs.openfoam.org/view.php?id=3102#c10159
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#
About OpenFOAM
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