value for pressureInletOutlet bc

Sirshendu · January 21, 2013, 09:43

I want to use pressureinletoutletVelocity boundary condition for velocity at outlet as this is not fully developed (there is a chance to be backflow) flow. But my question is what the value I should set? Is it always (0 0 0)? What is the function of this fixed value of velocity?

type pressureInletOutletVelocity;
value uniform (0 0 0)

nimasam · January 25, 2013, 14:30

as i guess this BC calculate velocity based on pressure, so
value uniform (0 0 0)
is place holder

Sirshendu · January 25, 2013, 15:08

Thanx Nima Sam for your reply.

If I put (0 0.6 0) instead of (0 0 0) whether it will affect the simulation or not?

nimasam · January 25, 2013, 15:22

i guess nope

, but i recommend you to see source code

January 21, 2013, 09:43	value for pressureInletOutlet bc	#1
Sirshendu New Member sirshosona Join Date: Jan 2013 Posts: 4 Rep Power: 6	I want to use pressureinletoutletVelocity boundary condition for velocity at outlet as this is not fully developed (there is a chance to be backflow) flow. But my question is what the value I should set? Is it always (0 0 0)? What is the function of this fixed value of velocity? type pressureInletOutletVelocity; value uniform (0 0 0)

January 25, 2013, 14:30		#2
nimasam Senior Member Nima Samkhaniani Join Date: Sep 2009 Location: Tehran, Iran Posts: 1,237 Blog Entries: 1 Rep Power: 18	as i guess this BC calculate velocity based on pressure, so value uniform (0 0 0) is place holder __________________ Telegram channel (https://telegram.me/openfoam4Iranian) My Weblog in Persian(http://openfoam.blogfa.com/) My Personal Website (http://nimasamkhaniani.ir/)

January 25, 2013, 15:22		#4
nimasam Senior Member Nima Samkhaniani Join Date: Sep 2009 Location: Tehran, Iran Posts: 1,237 Blog Entries: 1 Rep Power: 18	i guess nope , but i recommend you to see source code __________________ Telegram channel (https://telegram.me/openfoam4Iranian) My Weblog in Persian(http://openfoam.blogfa.com/) My Personal Website (http://nimasamkhaniani.ir/)

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January 25, 2013, 15:08		#3
Sirshendu New Member sirshosona Join Date: Jan 2013 Posts: 4 Rep Power: 6	Thanx Nima Sam for your reply. If I put (0 0.6 0) instead of (0 0 0) whether it will affect the simulation or not?