Specified the mass flow or velocity with internal condition

Jeremy167270 · September 1, 2023, 01:03

hey guys,I realy need some advice,please help me

.

As the title, I'm simulating a data center case, and I want to specify the flow rate behind each rack(with face). Obviously, I can't use inlet or outlet boundary conditions, so I want to know if there is a way to directly specify the flow velocity or flow rate on that face(maybe with internal condition or something else?).

CFDKareem · September 1, 2023, 11:18

I think you are looking for an internal fan condition. If you have two faces in contant you can specify a pressure jump across the face. This simulates a fan taking air in from one side and accelerating it back into the domain.

check out the fluent manual for more details on using the internal fan boundary condition

September 1, 2023, 01:03	Specified the mass flow or velocity with internal condition	#1
Jeremy167270 New Member Jie-Ying Zhan Join Date: Feb 2023 Posts: 10 Rep Power: 3	hey guys,I realy need some advice,please help me. As the title, I'm simulating a data center case, and I want to specify the flow rate behind each rack(with face). Obviously, I can't use inlet or outlet boundary conditions, so I want to know if there is a way to directly specify the flow velocity or flow rate on that face(maybe with internal condition or something else?).

September 1, 2023, 11:18		#2
CFDKareem Senior Member Kareem Join Date: Nov 2022 Location: New York Posts: 125 Rep Power: 4	I think you are looking for an internal fan condition. If you have two faces in contant you can specify a pressure jump across the face. This simulates a fan taking air in from one side and accelerating it back into the domain. check out the fluent manual for more details on using the internal fan boundary condition __________________ Please like the answer if it helped! Video Tutorials and Tips: https://www.youtube.com/@cfdkareem/featured

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