7d192447f0
To be used instead of zeroGradientFvPatchField for temporary fields for which zero-gradient extrapolation is use to evaluate the boundary field but avoiding fields derived from temporary field using field algebra inheriting the zeroGradient boundary condition by the reuse of the temporary field storage. zeroGradientFvPatchField should not be used as the default patch field for any temporary fields and should be avoided for non-temporary fields except where it is clearly appropriate; extrapolatedCalculatedFvPatchField and calculatedFvPatchField are generally more suitable defaults depending on the manner in which the boundary values are specified or evaluated. The entire OpenFOAM-dev code-base has been updated following the above recommendations. Henry G. Weller CFD Direct
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About OpenFOAM
OpenFOAM is a free, open source computational fluid dynamics (CFD) software package released by the OpenFOAM Foundation. It has a large user base across most areas of engineering and science, from both commercial and academic organisations. OpenFOAM has an extensive range of features to solve anything from complex fluid flows involving chemical reactions, turbulence and heat transfer, to solid dynamics and electromagnetics.
Copyright
OpenFOAM is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version. See the file COPYING in this directory or
http://www.gnu.org/licenses/, for a description of the GNU General Public
License terms under which you can copy the files.