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-   -   OpenFoam 2.1, time varying zeroGradient (https://www.cfd-online.com/Forums/openfoam-pre-processing/127860-openfoam-2-1-time-varying-zerogradient.html)

panpanzhong December 23, 2013 16:41
OpenFoam 2.1, time varying zeroGradient
 
Dear OpenFoam users,

I am wondering if it is possible to set a boundary condition on a patch such that the velocity is (0 0 0) when t<t1 and is zeroGradient type when t>=t1? Thank you very much.

Peng

nimasam December 25, 2013 01:59
uhum, it is totally possible, search in forum for

1- groovyBC
2-codeStream


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