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flow rate correction in timeVaryingMappedFixedValue

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May 9, 2020, 07:45	flow rate correction in timeVaryingMappedFixedValue	#1
vishalS New Member Join Date: Sep 2018 Posts: 3 Rep Power: 7	Hi all, hope everyone is doing good. I am using timeVaryingMappedFixedValue BC within pisoFoam to introduce turbulence at an inlet. The problem is that due to spatial interpolation the flow rate (Q) varies slightly with every time step and I'd like to keep it fixed by rescaling the velocity field by a factor (Q_ideal/Q_calculated). Could someone please let me know if such a BC already exists. If not, is there an example on how to calculate the flow rate ( surfaceIntegral(v.dA) ) in an OpenFoam BC? Please consider me a beginner in OpenFoam code implementation. Thank you.

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