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Forum: OpenFOAM

June 21, 2011, 03:33

Replies: 7

convergence problem

Views: 1,825

Posted By gregjunqua

I had try a lower grid scale as around 0.05m and...

I had try a lower grid scale as around 0.05m and there is a good convergence

...
How to explain it? :confused: my first guess was more the grid scale is small more the convergence is fast ...

Forum: OpenFOAM

June 21, 2011, 02:55

Replies: 7

convergence problem

Views: 1,825

Posted By gregjunqua

I don't specify the inlet, i just want a uniform...

I don't specify the inlet, i just want a uniform wind field at the boundaries

Moving wall
+-------------------------------------------------------------------+
|...

Forum: OpenFOAM

June 20, 2011, 21:14

Replies: 7

convergence problem

Views: 1,825

Posted By gregjunqua

Hi thanks for your answers. What do you mean...

Hi thanks for your answers.

What do you mean by unstructured?
My grid got a sinus form...
and my
my grid resolution is around 0.01m
and dT = 0.001;

This is the answer of the...

Forum: OpenFOAM

June 17, 2011, 04:08

Replies: 7

convergence problem

Views: 1,825

Posted By gregjunqua

convergence problem

Hi there.
I am quite new into modelling but i got a convergence problem as follow DICPCG ask a many iteration. How to make it less?
is improving the grid resolution or lowering the grid resolution...

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