need help with heat transfer in cfx

Aly · August 26, 2011, 08:26

hi

I'm using cfx to represent air flow inside an engine intake system and I want to apply cooling at certain parts of this system

I want to know how can I apply heat flux (+ve or -ve) in cfx

please help

thanks

Aly · August 26, 2011, 14:47

guys please anyone

ghorrocks · August 26, 2011, 23:05

Quote:

guys please anyone

Patience is a virtue.

Quote:

I want to know how can I apply heat flux (+ve or -ve) in cfx

This can be done on boundary conditions, volume sources, point sources, interphase coupling and many other ways.

What type of heat flux do you want to apply?

Aly · August 27, 2011, 06:22

simply all I want to do is apply on the intake system geometry (imagine its a primitive cylinder for simplification now) cooling using peltier's cells (electric refrigeration cells) and see how this affects the density of air and the mass flow rate at the outlet .

so its cooling for certain parts of the cylinder wall or even setting its temperature constant and passing air through it and then seeing how this affects air properties

ghorrocks · August 27, 2011, 08:11

The simplest approach then would be to make the walls have a defined heat flux equal to the heat extracted by the coolers. Simple.

August 26, 2011, 08:26	need help with heat transfer in cfx	#1
Aly New Member Aly Join Date: Aug 2011 Posts: 10 Rep Power: 15	hi I'm using cfx to represent air flow inside an engine intake system and I want to apply cooling at certain parts of this system I want to know how can I apply heat flux (+ve or -ve) in cfx please help thanks

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August 26, 2011, 14:47		#2
Aly New Member Aly Join Date: Aug 2011 Posts: 10 Rep Power: 15	guys please anyone

August 27, 2011, 06:22		#4
Aly New Member Aly Join Date: Aug 2011 Posts: 10 Rep Power: 15	simply all I want to do is apply on the intake system geometry (imagine its a primitive cylinder for simplification now) cooling using peltier's cells (electric refrigeration cells) and see how this affects the density of air and the mass flow rate at the outlet . so its cooling for certain parts of the cylinder wall or even setting its temperature constant and passing air through it and then seeing how this affects air properties

August 27, 2011, 08:11		#5
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,872 Rep Power: 144	The simplest approach then would be to make the walls have a defined heat flux equal to the heat extracted by the coolers. Simple.