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Forum: FLUENT

August 5, 2010, 03:48

Replies: 15

moving wall by UDF

Views: 3,416

Posted By mas

The inner boundary of the large circle should be...

The inner boundary of the large circle should be define as "deforming" type in the dynamic mesh zones panel. Faceted type might do the trick. Please refer to dynamic mesh tutorial for meshing options.

Forum: FLUENT

August 4, 2010, 19:53

Replies: 15

moving wall by UDF

Views: 3,416

Posted By mas

So, you moved the small circle. Good. I think...

So, you moved the small circle. Good.
I think while moving the small circle, you also need to update the geometry of the inner diameter of the large circle.

Forum: FLUENT

August 4, 2010, 06:39

Replies: 15

moving wall by UDF

Views: 3,416

Posted By mas

Hi almostafa67, I think the error was cause...

Hi almostafa67,

I think the error was cause by 2d 3d conflict.
Your case is 2d but your udf is for 3d.
Try this:

DEFINE_CG_MOTION(peristaltic,dt,cg_vel,cg_omega,ti me,dtime)
{
...

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