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timeVaryingMappedFixedValue + turbulentinlet

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Old   April 20, 2017, 06:59
Default timeVaryingMappedFixedValue + turbulentinlet
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Hi,

I have been simulating a channel flow using different RANS-models with an externally given inlet BC for the mean velocity by using timeVaryingMappedFixedValue. This works fine.

Now I want to run a LES simulation on the same domain. I want to keep the inlet BC for the mean velocities, given by the external data, but I must get in some fluctuations in this inlet. Basically what I want is a combination of "timeVaryingMappedFixedValue" and "turbulentInlet", where I just add some fluctuations to the mean profile supplied by "timeVaryingMappedFixedValue". Does anybody know how this can be achieved?
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Old   May 10, 2017, 05:13
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Ardalan
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Hi,
For doing LES, that is much better to run the channel flow with a constant source term, pressure gradient, and then sample the results to your domain using timeVaryingMappedFixedValue.
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