Jet in free air

vishal.indomitable · September 22, 2011, 00:49

I am trying to model a jet which is moving freely in air and impinging on a flat plate. Sir please suggest me how to define the condition in ANSYS-CFX Pre. Will I have to write an expression or taking air & water and specifying opening type boundary condition would do it?

ghorrocks · September 22, 2011, 07:12

Is the jet water? If so this is a multiphase simulation and tutorials like the free surface flow over a bump should help. What do you expect the jet to become? A fine mist, foam, or big splashes?

vishal.indomitable · September 22, 2011, 07:35

The jet will strike the plate and would become a splash. Would I have to write an expression or taking water and air as working fluid would do it?

ghorrocks · September 22, 2011, 09:06

Have a look at the flow over a bump tutorial for how to set it up.

September 22, 2011, 00:49	Jet in free air	#1
vishal.indomitable New Member Vishal Join Date: Feb 2011 Location: Bhopal, M.P. (India) Posts: 18 Rep Power: 15	I am trying to model a jet which is moving freely in air and impinging on a flat plate. Sir please suggest me how to define the condition in ANSYS-CFX Pre. Will I have to write an expression or taking air & water and specifying opening type boundary condition would do it?

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September 22, 2011, 07:12		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,854 Rep Power: 144	Is the jet water? If so this is a multiphase simulation and tutorials like the free surface flow over a bump should help. What do you expect the jet to become? A fine mist, foam, or big splashes?

September 22, 2011, 07:35		#3
vishal.indomitable New Member Vishal Join Date: Feb 2011 Location: Bhopal, M.P. (India) Posts: 18 Rep Power: 15	The jet will strike the plate and would become a splash. Would I have to write an expression or taking water and air as working fluid would do it?

September 22, 2011, 09:06		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,854 Rep Power: 144	Have a look at the flow over a bump tutorial for how to set it up.