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Showing results 1 to 7 of 7 Search took 0.00 seconds. Search: Posts Made By: alberto

Forum: OpenFOAM April 29, 2010, 10:41

Replies: 17 potentialFoam and Tets Views: 4,768 Posted By alberto Hi, in OpenFOAM you enforce the mass... Hi, in OpenFOAM you enforce the mass conservation by imposing div(phi) = 0 where phi is the mass or volumetric flux (meaning the velocity interpolated on faces, dotted with the surface +...

Forum: OpenFOAM April 28, 2010, 14:49

Replies: 17 potentialFoam and Tets Views: 4,768 Posted By alberto If you compute fvc::div(phi), which is what you... If you compute fvc::div(phi), which is what you have to check, since phi is the conservative flux, you obtain (cavity tutorial, time = 0.5, probably not at perfect steady state): Divergens...

Forum: OpenFOAM April 27, 2010, 12:49

Replies: 17 potentialFoam and Tets Views: 4,768 Posted By alberto Lovely skewed cells... :-D Lovely skewed cells... :-D

Forum: OpenFOAM April 27, 2010, 12:04

Replies: 17 potentialFoam and Tets Views: 4,768 Posted By alberto It should be a lot smaller than what you have.... It should be a lot smaller than what you have. The difference between div(U) and div(phi) is due to the interpolation. The flux phi is the variable responsible of ensuring the conservation, while you...

Forum: OpenFOAM April 27, 2010, 11:56

Replies: 17 potentialFoam and Tets Views: 4,768 Posted By alberto Hello, you should look at div(phi) since phi... Hello, you should look at div(phi) since phi is the conservative flux, and yes, that error is telling you the solution is not converging well. Try reducing the tolerances on the pressure linear...

Forum: OpenFOAM April 3, 2010, 13:40

Replies: 17 potentialFoam and Tets Views: 4,768 Posted By alberto FYI, similar problems on meshes with tets were... FYI, similar problems on meshes with tets were described here http://www.cfd-online.com/Forums/openfoam-solving/73744-overestimated-temperature-values.html#post252778 Best,

Forum: OpenFOAM March 29, 2010, 12:41

Replies: 17 potentialFoam and Tets Views: 4,768 Posted By alberto Hello, did you check the skewness of the... Hello, did you check the skewness of the mesh? Your pressure equation has a hard time to converge, and after 11 correctors the initial residual is still around 0.1, which means "not converged"...

Showing results 1 to 7 of 7

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