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Forum: OpenFOAM Running, Solving & CFD May 7, 2008, 04:17
Replies: 10
Views: 1,725
Posted By kar
To display difference field, I

To display difference field, I used div( interpolate_lin(U)&mesh.Sf() - phi ) and result looks like a fluctuations around zero. Also boundaries look problematic for some reason I don't know...
...
Forum: OpenFOAM Running, Solving & CFD May 5, 2008, 04:11
Replies: 10
Views: 1,725
Posted By kar
Well, I already did that. Sinc

Well, I already did that. Since my solver is incompressible, I used fvc::interpolate(U)&mesh.Sf() and that doesn't give me the same result for saved, converged U field as PISO loop does!
So I ask...
Forum: OpenFOAM Running, Solving & CFD May 4, 2008, 12:01
Replies: 10
Views: 1,725
Posted By kar
A simple case, where rho is co

A simple case, where rho is constant. Just for testing, so I can see if things work well, but they don't in fact.

Currently I've managed to crash icoFoam (and my own solvers) (see "OpenFOAM...
Forum: OpenFOAM Running, Solving & CFD May 4, 2008, 06:34
Replies: 10
Views: 1,725
Posted By kar
Another "mystery" related to t

Another "mystery" related to this is a steady solution of cavity - when using linear interpolation for convection, I get this ugly solution:
...
Forum: OpenFOAM Running, Solving & CFD May 3, 2008, 13:21
Replies: 10
Views: 1,725
Posted By kar
Ok, one question: are phi (sur

Ok, one question: are phi (surface field representing mass / volume flux) and U & mesh.Sf() supposed to be equal after PISO loop (U is velocity, of course)? Please answer to this!
Forum: OpenFOAM Running, Solving & CFD April 26, 2008, 10:21
Replies: 10
Views: 1,725
Posted By kar
Hello, I would be happy to

Hello,

I would be happy to read some answer to these 3 things currently confusing me:

1. Whats the point of ddtSchemes subdictionary (userguide u-109), if actual discretisation scheme is...
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