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Showing results 1 to 6 of 6 Search took 0.00 seconds. Search: Posts Made By: alberto

Forum: OpenFOAM Running, Solving & CFD September 20, 2010, 17:36

Replies: 17 non zero divergence for incompressible flow! Views: 5,910 Posted By alberto What I said is phi is a scalar quantity (it is... What I said is phi is a scalar quantity (it is the U_f \cdot surface), while the curl operation is only defined for vectors. The U in cell centres, which is what you visualize in paraview is not...

Forum: OpenFOAM Running, Solving & CFD September 20, 2010, 17:23

Replies: 17 non zero divergence for incompressible flow! Views: 5,910 Posted By alberto What do you use the vorticity for? What do you use the vorticity for?

Forum: OpenFOAM Running, Solving & CFD September 20, 2010, 16:38

Replies: 17 non zero divergence for incompressible flow! Views: 5,910 Posted By alberto Hello, phi is a scalarField, so curl(phi) is not... Hello, phi is a scalarField, so curl(phi) is not defined. You have to use a vectorField to compute the curl. Best,

Forum: OpenFOAM Running, Solving & CFD June 20, 2010, 15:31

Replies: 17 non zero divergence for incompressible flow! Views: 5,910 Posted By alberto Maybe we should put this in the wiki FAQ :D Maybe we should put this in the wiki FAQ :D

Forum: OpenFOAM Running, Solving & CFD June 18, 2010, 19:16

Replies: 17 non zero divergence for incompressible flow! Views: 5,910 Posted By alberto Hi Pascal, It is a question of... Hi Pascal, It is a question of consistency with how you discretise and solve the equations. Short answer: you impose div(phi) = 0, meaning div(U_f) = 0, being U_f the velocity on the cell...

Forum: OpenFOAM Running, Solving & CFD June 18, 2010, 10:36

Replies: 17 non zero divergence for incompressible flow! Views: 5,910 Posted By alberto You must check div(phi), using the phi coming out... You must check div(phi), using the phi coming out from the pressure equation, not div(U). Actually the code does that for you when it prints the local and global continuity error. Search for the...

Showing results 1 to 6 of 6

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