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March 15, 2013, 05:45
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Time step
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#1 |
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Member
hayder
Join Date: Jan 2012
Posts: 32
Rep Power: 14  |
Hi
I do simulation for flow around building and it includes unsteady conditions that I use implicit unsteady . My question is what the limit for the time step, and can we take it as big as 1 hour ? Thanks in advance 
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March 21, 2013, 17:09
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#2 |
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Senior Member
Join Date: Oct 2009
Location: Germany
Posts: 636
Rep Power: 21 |
Short answer: No, you can't make it as big as 1 hour when you want go get a reasonable result.
I can't tell you about the limit since it depends of the mesh and the physics. Try to keep the CFL number below 1 for physical results.
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