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Showing results 1 to 6 of 6 Search took 0.00 seconds. Search: Posts Made By: abdul099

Forum: STAR-CCM+ October 20, 2011, 08:38

Replies: 36 How to select Time step Views: 21,949 Posted By abdul099 You should look for the courant number in your... You should look for the courant number in your whole domain, not just at the inlet. When you get courant numbers like this in your whole domain, there's nothing to worry about. But you need to know...

Forum: STAR-CCM+ October 11, 2011, 17:06

Replies: 36 How to select Time step Views: 21,949 Posted By abdul099 But the cell size is still unknown, therefore... But the cell size is still unknown, therefore it's still impossible to suggest the timestep. Why don't you try a time step of let's say 0.1 seconds (assuming you don't model the fan itself) and plot...

Forum: STAR-CCM+ October 6, 2011, 18:42

Replies: 36 How to select Time step Views: 21,949 Posted By abdul099 The time step does not depend on the number of... The time step does not depend on the number of cells but on the time frame of your physical phenomena. Read my second post, it's all written there. I never mentioned, you need a small time step when...

Forum: STAR-CCM+ October 5, 2011, 19:25

Replies: 36 How to select Time step Views: 21,949 Posted By abdul099 When it's a usual cluster using a batch system,... When it's a usual cluster using a batch system, you have to do it by the batch system. I can't help you with any commands, as there are several batch systems available. When you don't use a batch...

Forum: STAR-CCM+ October 1, 2011, 17:50

Replies: 36 How to select Time step Views: 21,949 Posted By abdul099 Using too much cores will decrease efficiency, no... Using too much cores will decrease efficiency, no matter if it's a steady or unsteady simulation. What you could do to speed up your simulation is to use less cores per node, because all cores on a...

Forum: STAR-CCM+ September 22, 2011, 17:29

Replies: 36 How to select Time step Views: 21,949 Posted By abdul099 Depends on your desired accuracy. The smaller the... Depends on your desired accuracy. The smaller the timestep, the better for accuracy and stability, but the worse in terms of computational cost. In most cases, the timestep will be set to allow...

Showing results 1 to 6 of 6

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