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ENH: improvements in the surface sampling infrastructure

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- improvement documentation for surface sampling.

- can now specify alternative sampling scheme for obtaining the
  face values instead of just using the "cell" value. For example,

      sampleScheme    cellPoint;

  This can be useful for cases when the surface is close to a boundary
  cell and there are large gradients in the sampled field.

- distanceSurface now handles non-closed surfaces more robustly.
  Unknown regions (not inside or outside) are marked internally and
  excluded from consideration. This allows use of 'signed' surfaces
  where not previously possible.
This commit is contained in:
Mark Olesen
2018-05-07 11:29:00 +02:00
parent 5268b5e61d
commit b0648f2ba0
94 changed files with 4029 additions and 2885 deletions
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18
src/functionObjects/field/fieldValues/surfaceFieldValue/surfaceFieldValueTemplates.C
View File

@ -3,7 +3,7 @@
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2017 OpenFOAM Foundation
\\/ M anipulation | Copyright (C) 2015-2017 OpenCFD Ltd.
\\/ M anipulation | Copyright (C) 2015-2018 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
@ -29,6 +29,7 @@ License
#include "volFields.H"
#include "sampledSurface.H"
#include "surfaceWriter.H"
#include "interpolationCell.H"
#include "interpolationCellPoint.H"
// * * * * * * * * * * * * Protected Member Functions * * * * * * * * * * * //
@ -100,18 +101,15 @@ Foam::functionObjects::fieldValues::surfaceFieldValue::getFieldValues
// Average
const faceList& faces = surfacePtr_().faces();
tmp<Field<Type>> tavg
(
new Field<Type>(faces.size(), Zero)
);
Field<Type>& avg = tavg.ref();
auto tavg = tmp<Field<Type>>::New(faces.size(), Zero);
auto& avg = tavg.ref();
forAll(faces, facei)
{
const face& f = faces[facei];
forAll(f, fp)
for (const label labi : f)
{
avg[facei] += intFld[f[fp]];
avg[facei] += intFld[labi];
}
avg[facei] /= f.size();
}
@ -120,7 +118,9 @@ Foam::functionObjects::fieldValues::surfaceFieldValue::getFieldValues
}
else
{
return surfacePtr_().sample(fld);
const interpolationCell<Type> interp(fld);
return surfacePtr_().sample(interp);
}
}
else