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April 27, 2005, 08:39 |
Timestep for transient simulation
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#1 |
Guest
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Hi, I'm modeling a "bubble column" (by CFX5.6) and running a transient simulation (steady state didn't work) I have almost 200,000 elements and I'm using 0.05 s, timesteps, the residual curves are not smooth and after 200 time steps, the imbalace eqs. aren't converged, yet! so, I guess my timestep 0.05s is very small. (there are almost 8 loop iterations for each timestep) so, am I on the right track or shall I make some changes?!? would appreciate any comments...
regards, houman |
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April 27, 2005, 19:51 |
Re: Timestep for transient simulation
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#2 |
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Hi,
What are you trying to do? 8 iterations per timestep for a multi-phase simulation is fairly normal. Regards, Glenn Horrocks |
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April 28, 2005, 04:44 |
Re: Timestep for transient simulation
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#3 |
Guest
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Hi Glenn, Many thanks for your reply, you are right, I am working on a two phase simulation (gas & water). so I don't have to worry about it Regards, Houman
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