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Physical Interpretation of timescale in steady state simulations

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Old   December 13, 2017, 11:49
Default Physical Interpretation of timescale in steady state simulations
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Dear all,

I was wondering if solution at different iterations of a steady state simulation has any physical meaning?

I am running a steady state simulation (auto timescale); writing back-up outputs at every 50 iterations. Since CFX solves the steady state simulations in a pseudo-transient way, I was expecting that solution at different iterations are like transient trn files in the transient simulations and I can somehow realise how physics of my domain changes with time.

But I think I am wrong, since the solution is not reliable before it converged and thus the interim back-ups when the solution is not converged does not say anything about evolution of the flow with time, and the only reliable solution is the one I get in the end after convergence.

I would appreciate if anybody can advise on this.

Many thanks
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Old   December 13, 2017, 15:15
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Correct.

Nothing to study from the intermediate files unless you are interested in numerics and convergence acceleration of the non-linear iterations.
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Old   December 14, 2017, 03:59
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Quote:
Originally Posted by Opaque View Post
Correct.

Nothing to study from the intermediate files unless you are interested in numerics and convergence acceleration of the non-linear iterations.
Thanks a lot Opaque!
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