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Old   April 7, 2011, 14:12
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Pavelistyj
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Hello all,

I have a transient problem. How can I calculate the total mass/volumetric flow rate?

Thanks.
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Old   April 7, 2011, 18:08
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Glenn Horrocks
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Do you mean integrate the mass flow rate over time to give a total mass? (or total volume)

In the solver use a monitor point to output the flow rate. Export the monitor point data and do the integration in Excel/matlab/whatever.

In CFD-Post, similarly load each timestep you saved and export the flow rate. Do the time integration in another package like excel/matlab.
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Old   April 8, 2011, 03:51
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Thanks for your response,

But I can not find flow rate in monitor point menu, I can see only velocity.
The same is in CFD-Post...

Thanks
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Old   April 8, 2011, 06:21
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Use a CEL expression, such as massflow()@Location.
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Old   April 8, 2011, 08:20
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Thank you very much !
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