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Forum: OpenFOAM Running, Solving & CFD

January 14, 2010, 10:43

Replies: 8

pisoFoam floating point error - GAMG

Views: 7,573

Posted By matejfor

Ok. now we are getting somwhere!! it's LES,...

Ok. now we are getting somwhere!!

it's LES, so few things to consider, if you want reasonable LES results:

(1) Co Number should be kept around 0.2 definitely not higher

(2) there is usually...

Forum: OpenFOAM Running, Solving & CFD

January 14, 2010, 04:55

Replies: 8

pisoFoam floating point error - GAMG

Views: 7,573

Posted By matejfor

Erik, (1) non-orthogonality 80 is a top...

Erik,

(1) non-orthogonality 80 is a top class number ;). what is you mesh made of, polyhedrals? You may try to use some limiting like:

gradSchemes
{
default cellLimited...

Forum: OpenFOAM Running, Solving & CFD

January 14, 2010, 02:59

Replies: 8

pisoFoam floating point error - GAMG

Views: 7,573

Posted By matejfor

Hi, I would add to Niels' posts some other...

Hi,

I would add to Niels' posts some other hints.
(1) the mesh. as Niels mentioned, mesh is very important. So you should do a checkMesh on your case to see, if the mesh is good. If, e.g. your...

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