Opening vs Entrainment

Red Ember · June 10, 2016, 04:32

Hi to all

My question concerns using ANSYS CFX, steady state analysis type.
Can anybody give more or less obvious examples for Opening and Entrainment boundary conditions? What is the difference (ansys help without pictures was almost useless for me)?

Gioacchino La Rochelle · August 28, 2018, 11:23

Quote:

Originally Posted by Red Ember

Hi to all

My question concerns using ANSYS CFX, steady state analysis type.
Can anybody give more or less obvious examples for Opening and Entrainment boundary conditions? What is the difference (ansys help without pictures was almost useless for me)?

I've the same issue.
My problem is a open domain with inlet and outlet known flows.

evcelica · August 28, 2018, 11:59

Entertainment allows the flow to flow out in any direction, it doesn't have to be normal to the surface, or any other specified direction.
There may be more differences, that's just what I know off the top of my head.

The CFX documentation may be more help than the ANSYS "help"

June 10, 2016, 04:32	Opening vs Entrainment	#1
Red Ember Member Alex Join Date: Feb 2016 Posts: 81 Rep Power: 10	Hi to all My question concerns using ANSYS CFX, steady state analysis type. Can anybody give more or less obvious examples for Opening and Entrainment boundary conditions? What is the difference (ansys help without pictures was almost useless for me)?

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August 28, 2018, 11:59		#3
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,188 Rep Power: 23	Entertainment allows the flow to flow out in any direction, it doesn't have to be normal to the surface, or any other specified direction. There may be more differences, that's just what I know off the top of my head. The CFX documentation may be more help than the ANSYS "help"