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Forum: FLUENT

July 1, 2011, 03:02

Replies: 8

some question

Views: 1,511

Posted By Philipov

That's ok.... for me it is ok but sometimes...

That's ok.... for me it is ok but sometimes people here are not so familiar and this explanation is good for them

Forum: FLUENT

June 30, 2011, 11:21

Replies: 8

some question

Views: 1,511

Posted By Philipov

I will a little disagree with the last comment as...

I will a little disagree with the last comment as far as in air speed of sound is about 342m/s and if you have a cell size of 0.1m in X direction (for example) then you need dt of 3.0E-04 .
From...

Forum: FLUENT

June 28, 2011, 09:56

Replies: 8

some question

Views: 1,511

Posted By Philipov

As a starting point -Yes and if you do not obtain...

As a starting point -Yes and if you do not obtain convergence reduce timestep by factor of 2 until you get convergence and proper results.

Forum: FLUENT

June 28, 2011, 06:59

Replies: 8

some question

Views: 1,511

Posted By Philipov

there is a kind of unwritten rule - time step is...

there is a kind of unwritten rule - time step is of a magnitude of that allows short phenomena modeling.
it depends on the processes you are going to model and bigger mesh not always results in...

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