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What is the difference between taking mass flow rate from Openfoam and Parafoam? |
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November 23, 2020, 08:57 |
What is the difference between taking mass flow rate from Openfoam and Parafoam?
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New Member
Merve Akkus
Join Date: Jun 2020
Location: Turkey
Posts: 3
Rep Power: 6 |
Hi dear Foamers,
I am trying to understand whether my converged Openfoam solution is true or not. To estimate the accuracy of the solution I am observing the mass flow rate for inlet and outlet patches. I am modelling a square pipe geometry with simpleFoam and buoyantSimpleFoam.When I search how to find the mass flow rate in Openfoam, I found 2 ways: 1. It can be find from Openfoam postprocessing: by typing postProcess -func 'flowRatePatch(name=inlet)' -latestTime in terminal, 2. It can be find from Paraview: 1. calculate with Mag(U) from calculator 2. apply Extract Block filter 3. apply Integrate Variables filter (By the way, I am using air at room temperature, so its density is 1, it's density won't be change because of the incompressible flow) These two ways are giving different mass flow rate values. I am wondering about what is the difference between finding mass flow rate from Openfoam postprocessing and Paraview? I would be glad if you help. Last edited by Makkus; November 23, 2020 at 10:07. |
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flowratepatch, massflowrate, openfoam, paraview, postprocess |
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