pressure drop for periodic flow

Kaazem_RA · December 25, 2019, 15:25

Hi all
I simulated fully developed flow using openfoam. I need to calculate pressure drop. The problem is that the pressure boundary condition at the inlet and outlet are cyclic and therefore pressures are the same at this boundaries. Is there any way to calculate actual pressure and subsequently pressure drop?

an early reply would be highly appreciated

Kaazem_RA · December 26, 2019, 01:33

I should mention that i added a source term in the momentum equation via fvoption.

Santiago · December 26, 2019, 07:02

Quote:

Originally Posted by Kaazem_RA

I should mention that i added a source term in the momentum equation via fvoption.

so you impose the pressure gradient (drop)....

December 25, 2019, 15:25	pressure drop for periodic flow	#1
Kaazem_RA New Member Kaazem Join Date: Jul 2018 Posts: 13 Rep Power: 7	Hi all I simulated fully developed flow using openfoam. I need to calculate pressure drop. The problem is that the pressure boundary condition at the inlet and outlet are cyclic and therefore pressures are the same at this boundaries. Is there any way to calculate actual pressure and subsequently pressure drop? an early reply would be highly appreciated

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December 26, 2019, 01:33		#2
Kaazem_RA New Member Kaazem Join Date: Jul 2018 Posts: 13 Rep Power: 7	I should mention that i added a source term in the momentum equation via fvoption.