Nusselt Number calculation in periodic condition

gauravgil92 · November 1, 2017, 02:52

hello,

I am simulating flow characteristics and thermal performance in a 3D rectangular microchannel using periodic boundary condition. Flow is laminar and constant wall heat flux condition is used.I want to calculate average Nu number , for that mean fluid temperature is to be found out.

How I can do this? please give some suggestions.

Thanks in advance!!

AlexanderZ · November 1, 2017, 03:08

results -> reports -> volume integrals (in case of 3D simulation) ->Volume-Average | Static pressure |your fluid domain

If you want to get this value automatically, you may use UDF. See ANSYS Fluent Customization Manual

Best regards.

gauravgil92 · November 1, 2017, 05:40

Thanks,

But question is to calculate mean fluid temperature of the flow domain, so I am able to find nusselt number??

please give some views on it!!

November 1, 2017, 02:52	Nusselt Number calculation in periodic condition	#1
gauravgil92 New Member Join Date: May 2017 Posts: 13 Rep Power: 9	hello, I am simulating flow characteristics and thermal performance in a 3D rectangular microchannel using periodic boundary condition. Flow is laminar and constant wall heat flux condition is used.I want to calculate average Nu number , for that mean fluid temperature is to be found out. How I can do this? please give some suggestions. Thanks in advance!!

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November 1, 2017, 03:08		#2
AlexanderZ Senior Member Alexander Join Date: Apr 2013 Posts: 2,363 Rep Power: 34	results -> reports -> volume integrals (in case of 3D simulation) ->Volume-Average \| Static pressure \|your fluid domain If you want to get this value automatically, you may use UDF. See ANSYS Fluent Customization Manual Best regards.

November 1, 2017, 05:40		#3
gauravgil92 New Member Join Date: May 2017 Posts: 13 Rep Power: 9	Thanks, But question is to calculate mean fluid temperature of the flow domain, so I am able to find nusselt number?? please give some views on it!!