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Originally Posted by Giancarlo_IngChimico

Hi everybody,

does anybody know how to create a mesh with PRIMS instead of HEX in "blocks" in blockMeshDict?
Is there any guide online?
Thanks

Originally Posted by jango

Hi j-avdeev,

This model (see attached files) I created with a python script. With python you can do parametric modelling and it`s much easier than editing the blockMeshDict by hand. For 3D- boundary layer you can use salome (www.salome-platform.org)

greets,

Originally Posted by Andrea1984

Hi,

I would like to inizialize a random velocity field with funkySetFields. Is it possible?

I've tried something like

{
field U;
expression "vector (0.005*rand(), 0.005*rand(), 0.005*rand())";
}

Do you think this should work?

Thanks in advance


Andrea

Originally Posted by hjasak

Actually, the grading factor in blockMesh is defined as the ratio of the last to first cell size, which is much better behaved that defining the number of cells and the geometric expansion ratio. I suppose we have both done the same thing :-)

Hrv

Originally Posted by potentialFoam

Dear Foamers,

I would like to create my own fvOptions-class to introduce a momentum source term. (Unfortunately, none of the existing classes help me.)

Approach:
I copied the 'actuationDiskSource'-folder,
I renamed the files and names inside from 'actuationDisk...' to 'newSource...',
I added the 'newSource.C'-file in '$FOAM_SRC/fvOptions/Make/files',
then I tried to compile it with 'wmake' and 'wmake libso'.

Originally Posted by huangxianbei

After a period of searching , I continue my calculation for a much longer time, the velocity at the domain center oscillating around 0.15m/s(the Ubar=0.1335m/s), about 1.1times. So this is exactly what it should be. The first problem is solved.

However, I'm still not quite understand the second problem. How can we initialize the p ,nusgs fields? Or my misunderstanding, just perturbU required for the velocity field?