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From steady state to transient simulation

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Old   December 24, 2020, 13:17
Default From steady state to transient simulation
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Hello everyone!

First of all, Merry Christmas!!

So far, I have been working with steady state simulations. But now I need to perform a transient one. Is there any rule of thumb when relating transient with steady state simulations in terms of the number of required iterations? For instance, my steady state simulation requires more or less 20 000 iterations to converge. In the transient case I would need a 0.001 time step size and because the residence time is 1 sec, the number of time steps would be equal to 1000. Please don't tell me that I would have to set 20 000 iterations/time step. Or can I just run a steady state simulation and use the results from it to run a transient simulation simply by clicking continue from previous solution and then I could use less iterations/time step e.q. 100 ?

Best regards,
Mechand is offline   Reply With Quote


rans modelling, steady state dpm, transient 2d

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