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cd1350a87f
- can use either command-line option "-load-fields" or dictionary entry "readFields" to specify field names to be preloaded. Essentially the same functionality as with a readFields function object but with a lot less typing. - tutorial examples provided by Ryan Danks <ryan.danks@rwdi.com> illustrate using setExpr* utilities to calculate a quantity as a post-processing step.
56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
/*--------------------------------*- C++ -*----------------------------------*\
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| ========= | |
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| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
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| \\ / O peration | Version: v2012 |
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| \\ / A nd | Website: www.openfoam.com |
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| \\/ M anipulation | |
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\*---------------------------------------------------------------------------*/
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FoamFile
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{
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version 2.0;
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format ascii;
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class dictionary;
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object setExprFieldsDict;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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// Preload any required fields (optional)
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readFields ( U );
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expressions
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(
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T
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{
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field T;
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dimensions [0 0 0 1 0 0 0];
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constants
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{
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centre (0.21 0 0.01);
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}
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variables
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(
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"radius = 0.1"
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);
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condition
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#{
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// Within the radius
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(mag(pos() - $[(vector)constants.centre]) < radius)
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// but only +ve y!
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&& pos((pos() - $[(vector)constants.centre]).y()) > 0
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#};
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expression
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#{
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300
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+ 200 * (1 - mag(pos() - $[(vector)constants.centre]) / radius)
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#};
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}
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);
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// ************************************************************************* //
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