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volumetricFlowRateTriSurface: Corrected pre-configuration, and added an example

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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.
This commit is contained in:
Will Bainbridge
2021-01-08 10:45:09 +00:00
parent 0539b6335b
commit bda07488f0
7 changed files with 15 additions and 7 deletions
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7
src/functionObjects/field/fieldValues/surfaceFieldValue/surfaceFieldValue.C
View File

@ -2,7 +2,7 @@
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2020 OpenFOAM Foundation
\\ / A nd | Copyright (C) 2011-2021 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
@ -426,23 +426,24 @@ void Foam::functionObjects::fieldValues::surfaceFieldValue::initialise
const dictionary& dict
)
{
dict.lookup("name") >> regionName_;
switch (regionType_)
{
case regionTypes::faceZone:
{
dict.lookup("name") >> regionName_;
setFaceZoneFaces();
break;
}
case regionTypes::patch:
{
dict.lookup("name") >> regionName_;
setPatchFaces();
break;
}
case regionTypes::sampledSurface:
{
sampledSurfaceFaces(dict);
regionName_ = surfacePtr_().name();
break;
}
default: