b162c4818b
The current Courant number limited formulation is preferable for cases running with VERY small Courant numbers but there are stability issues with it on some cases for which the previous flux-normalised scheme worked well. Overall the previous scheme has proved more reliable and fvcDdtPhiCoeff has been reverted to it pending further research and development in this area which will require funding: https://openfoam.org/news/funding-2019/ https://openfoam.org/maintenance/
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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
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