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initializing the solution

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Old   June 5, 2004, 02:10
Default initializing the solution
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Thiyagarajan
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hi all,

i have a doubt when initializing the solution in Fluent.which zone is to be selected? would "all zones" be a good option? else clicking "init" without selecting any zone is right? sometimes when i select all zones Fluent receives a fatal error? what would be the cause? thanks for any suggestions? regards Thiyaga.
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Old   June 5, 2004, 07:44
Default Re: initializing the solution
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leung
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Haha, i have the same question as you in my mind
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Old   June 6, 2004, 02:48
Default Re: initializing the solution
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Arun
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Hi

your initalization should be some reasonable value. The code is supposed to accept any kind of initialization as it does iterations, but what happens in some case of bad initialization like having zero quantities, the code blows up. You can compute the initialization from the region which you think would give values close to the final solution over the whole domain. Like the flow inside a pipe is dependent on its velocity inlet, so the initialization is computed from the inlet. Good initial guesses also lead to faster solution. Hope this helps.

Arun

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