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FMG vs hybrid vs interpolation initialization

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Old   May 8, 2014, 11:00
Default FMG vs hybrid vs interpolation initialization
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Hi everyone,

i just wanted to ask a general question of the fluent users as to which initialization you have found to be the most effective in terms of reducing total iteration count of your simulations?

I am used the PBCS for a turbomachinery flow. My simulation is part of an optimisation routine and so up until this point, i have initializing by interpolating a baseline solution from my baseline geometry for the individual simulations.

however, i am interested to know what anybodies experiences are with the FMG and Hybrid approaches in general, and whether either (or none ) is preferred?

Also, i am solving using a standard PBCS setup, but am considering psuedo-transient under-relaxation to try to speed things up. Any tipe / advice / experiences anybody would like to share?

I am running a couple test cases so in either event i should be able to report back if anybody is interested.

take care and thanks
cheers
jonathan
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