Adjusting boundary conditions

zvonimirvrs · August 23, 2018, 12:23

Hi guys,

I have a 2D tube with pulsatile flow, UDF velocity inlet and pressure outlet. I want to see the same flow (velocity profile) but with UDF pressure inlet and pressure outlet.

I tried to record the pressure change from the UDF velocity inlet simulation and to create UDF pressure inlet but it did not work well. Velocity profile is similar but not the same.

Any ideas?

Thanks

blackmask · August 23, 2018, 23:23

It depends on how do you implement. Note that the pressure in pressure inlet refers to total pressure whereas that in pressure outlet refers to static pressure.

August 23, 2018, 12:23	Adjusting boundary conditions	#1
zvonimirvrs New Member Join Date: Feb 2015 Posts: 2 Rep Power: 0	Hi guys, I have a 2D tube with pulsatile flow, UDF velocity inlet and pressure outlet. I want to see the same flow (velocity profile) but with UDF pressure inlet and pressure outlet. I tried to record the pressure change from the UDF velocity inlet simulation and to create UDF pressure inlet but it did not work well. Velocity profile is similar but not the same. Any ideas? Thanks

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August 23, 2018, 23:23		#2
blackmask Senior Member Join Date: Aug 2011 Posts: 421 Blog Entries: 1 Rep Power: 21	It depends on how do you implement. Note that the pressure in pressure inlet refers to total pressure whereas that in pressure outlet refers to static pressure.