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Forum: OpenFOAM Community Contributions

January 10, 2013, 05:10

Replies: 18

[swak4Foam] how to initialize a random velocity field with funkySetFields

Views: 6,038

Posted By Andrea1984

Bernhard, Thank you very much for your tips,...

Bernhard,

Thank you very much for your tips, now I have a wonderful (pseudo-)random velocity field!

If anyone else is interested, the expression i used is:

"vector (0.01*rand(12)-0.005,...

Forum: OpenFOAM Community Contributions

January 9, 2013, 11:10

Replies: 18

[swak4Foam] how to initialize a random velocity field with funkySetFields

Views: 6,038

Posted By Andrea1984

Obtaining the desired range starting from [0,1)...

Obtaining the desired range starting from [0,1) it's not a problem; my problem is how to have three different random scalar fields (one for each velocity component).

I've also tried to use...

Forum: OpenFOAM Community Contributions

January 1, 2013, 08:51

Replies: 18

[swak4Foam] how to initialize a random velocity field with funkySetFields

Views: 6,038

Posted By Andrea1984

Hi Bernard, I was pretty sure that the...

Hi Bernard,

I was pretty sure that the formulation in my previous post is wrong because rand() generates a scalar random field, so it has a defined and unique value in each cell of the domain. In...

Forum: OpenFOAM Community Contributions

December 30, 2012, 06:57

Replies: 18

[swak4Foam] how to initialize a random velocity field with funkySetFields

Views: 6,038

Posted By Andrea1984

how to initialize a random velocity field with funkySetFields

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(),...

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