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wall heat transfer coefficient

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March 22, 2010, 18:19	wall heat transfer coefficient	#1
elsa New Member elsa Join Date: Mar 2010 Posts: 7 Rep Power: 16	I have made a wind tunnel; wall is 60 celsius and the air is 25 degree. But the wall heat transfer coefficient is a fluctuating diagram. I've checked everything. does anybody know why is happens?

March 23, 2010, 05:28		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Have you tried these tips? http://www.cfd-online.com/Wiki/Ansys...gence_criteria What do you mean by "But the wall heat transfer coefficient is a fluctuating diagram"? Are you running steady state or transient? How are you monitoring wall heat transfer coefficient?

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