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Different results for same simulation

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Old   November 26, 2017, 15:14
Default Different results for same simulation
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Edward
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Hello,
I am running the exact same model & parameters (basically the same simulation) without any changes at all. Basically, run today, close the thing, come back tomorrow, run again the same thing and I get two different answers. Anybody know any reason why that could be? Thanks in advance.
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Old   April 4, 2018, 09:38
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Laura Sumner
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hey did you ever find out why this was happening? Having the same issue myself!

Laura
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Old   April 5, 2018, 07:16
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ehsan
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What are your boundary conditions? What is the coupling method (velocity-pressure)?
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Old   April 6, 2018, 04:37
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I suspect the simulations are not set up identical or the simulation itself has some kind of randomnes implemented. If the first thing can be ruled out entirely, i would help to know the simulation approach e.g. DNS, LES, RANS, URANS, BC's etc.
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