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CFX boundary conditions setting

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Old   March 5, 2018, 07:17
Post CFX boundary conditions setting
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Hello !

I wanted to know about how i can know the exact value of Static Pressure at the outlet of a Pump turbine to meet a certain experimentally found Head value. I have already set the inlet Boundary conditions to mass flow in.

Thank you !
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Old   March 5, 2018, 13:57
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Heat at the oulet = Total Pressure = Pstatic + rho/2*v^2
Since you know the massflow, you should be able to calculate the average velocity at the outlet. From that, you can calculate Pstatic, not?
The accuracy depends on the velocity uniformity at the oulet. You should determine that using CFD. It it not very uniform, then you might be a bit off.

But then that is something to optimize. :-)
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