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very small time step in GMO model

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Old   August 12, 2011, 05:37
Default very small time step in GMO model
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shyam prasad
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Hi,
I am modeling a rotating part (using GMO) at an rpm of 1200 with a viscous material of 10000 cps. I get a time step of 1e-8/1e-9s, while the time step for courant number to be equal to 1 is approx. 1e-3. What are the contributing factors for a very low time step in GMO model? How can I reduce the time step?
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Old   December 12, 2011, 01:26
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michael barkhudarov
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What's the code for the stability limit on the time step? 'vs' or 'cx', 'cy', 'cz'?
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