shell and tube heat exchanger...

ganesh chakravarthi · July 5, 2015, 17:25

Hii everyone,
I am working on shell and tube heat exchanger problem..in this problem I took two inlets( one for shell and other for tube) and two outlets.. I am taking water for shell inlet and ethylene glycol.. For tube inlet..How to solve this problem in CFX...is it important to create interfaces or not...and how to define materials in CFX...

ghorrocks · July 5, 2015, 19:26

Have a look at the tutorials provided with CFX. That will show you the basics.

ganesh chakravarthi · July 6, 2015, 16:25

I have started giving boundary conditions to heat exchanger...for example if I define water as shell inlet and ethylene glycol for tube inlet..there is a problem in fluid and particle definitions it automatically changes to water for both inlets...where does this problem occurs..please help me out...

ghorrocks · July 6, 2015, 19:44

CFX cannot use, by default, different fluids in different domains. This makes it a mutiphase simulation. You can get around this by disabling the ensure constant domain physics option. Have a search of the forum for information about this.

July 5, 2015, 17:25	shell and tube heat exchanger...	#1
ganesh chakravarthi New Member ganesh chakravarthi Join Date: Apr 2014 Posts: 14 Rep Power: 12	Hii everyone, I am working on shell and tube heat exchanger problem..in this problem I took two inlets( one for shell and other for tube) and two outlets.. I am taking water for shell inlet and ethylene glycol.. For tube inlet..How to solve this problem in CFX...is it important to create interfaces or not...and how to define materials in CFX...

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July 5, 2015, 19:26		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,871 Rep Power: 144	Have a look at the tutorials provided with CFX. That will show you the basics.

July 6, 2015, 16:25		#3
ganesh chakravarthi New Member ganesh chakravarthi Join Date: Apr 2014 Posts: 14 Rep Power: 12	I have started giving boundary conditions to heat exchanger...for example if I define water as shell inlet and ethylene glycol for tube inlet..there is a problem in fluid and particle definitions it automatically changes to water for both inlets...where does this problem occurs..please help me out...

July 6, 2015, 19:44		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,871 Rep Power: 144	CFX cannot use, by default, different fluids in different domains. This makes it a mutiphase simulation. You can get around this by disabling the ensure constant domain physics option. Have a search of the forum for information about this.