bda07488f0
A volumetric flow rate through a tri-surface can now be obtained using
the volumetricFlowRateTriSurface preconfigured function object, using
the following entry in system/controlDict:
fuctions
{
#includeFunc "volumetricFlowRateTriSurface(name=surface.stl)"
}
Where "surface.stl" is a tri-surface file in the constant/triSurface
directory. An example of this has been added to the
incompressible/pimpleFoam/RAS/impeller tutorial case.
Note that when possible, it is preferable to use the flowRatePatch or
flowRateFaceZone functions, as these make direct use of the flux and
therefore report a value that is exactly that computed by the solver.
volumetricFlowRateTriSurface, by contrast, does interpolation of the
velocity field which introduces error.
In addition, a minor fix has been made to the underlying
surfaceFieldValue function object so that it does not need a zone/set
name when values on a searchable surface are requested.
21 lines
920 B
C++
21 lines
920 B
C++
/*--------------------------------*- C++ -*----------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Version: dev
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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Description
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Calculates volumetric flow rate through a specified triangulated surface
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by interpolating velocity onto the triangles and integrating over the
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surface area. Triangles need to be small (<= cell size) for an accurate
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result.
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\*---------------------------------------------------------------------------*/
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name <triSurfaceFileName>;
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#includeEtc "caseDicts/postProcessing/flowRate/volumetricFlowRateTriSurface.cfg"
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// ************************************************************************* //
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