Extracting Average Nusselt Number of a vertical Solar Chimney directly from Fluent

yomilayeni · September 19, 2015, 10:32

I have challenges extracting the Average Nusselt Number directly from the simulation by Fluent. The local heat transfer coefficient of the wall is available directly from the simulation and I require directly from the simulation also the Average Nusselt Number.

LuckyTran · September 19, 2015, 11:20

You can compute it from Reports>Surface Integral or you can make a surface monitor.

Bruno Machado · September 19, 2015, 15:16

As LuckyTran said, you can get t by the surface integral. Do not forget to adjust the reference values (properties, length, etc.) for your case, because they are used to compute the mean and local Nusselt number.

yomilayeni · September 21, 2015, 00:08

Thanks. It does work. How do I make a surface monitor though?

yomilayeni · September 21, 2015, 00:10

How do I adjust the reference values? I thought the surface integral and selection of the name section takes care of that.

Bruno Machado · September 21, 2015, 04:28

Quote:

Originally Posted by yomilayeni

How do I adjust the reference values? I thought the surface integral and selection of the name section takes care of that.

in the solution setup menu, there is a link to the reference values area.

yomilayeni · September 22, 2015, 13:13

Thanks Bruno Machado. I seem no to be able to find the Solution set up menu you are referring to.

AHF · September 22, 2015, 14:46

Quote:

Originally Posted by yomilayeni

Thanks Bruno Machado. I seem no to be able to find the Solution set up menu you are referring to.

you use ansys fluent or fluent ?
which version ?

yomilayeni · September 22, 2015, 14:59

I am using ANSYS Fluent

yomilayeni · September 22, 2015, 15:47

I am using ANSYS Fluent 14.5

AHF · September 23, 2015, 15:24

Quote:

Originally Posted by yomilayeni

I am using ANSYS Fluent 14.5

you can find reference value here in picture
when read mesh enable automatic

yomilayeni · September 23, 2015, 16:12

Thanks AHF. Got it

September 19, 2015, 10:32	Extracting Average Nusselt Number of a vertical Solar Chimney directly from Fluent	#1
yomilayeni New Member Abayomi T. LAYENI Join Date: Sep 2015 Location: Lagos, Nigeria Posts: 16 Rep Power: 10	I have challenges extracting the Average Nusselt Number directly from the simulation by Fluent. The local heat transfer coefficient of the wall is available directly from the simulation and I require directly from the simulation also the Average Nusselt Number.

September 19, 2015, 11:20		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,672 Rep Power: 65	You can compute it from Reports>Surface Integral or you can make a surface monitor. yomilayeni likes this.

September 19, 2015, 15:16		#3
Bruno Machado Senior Member Bruno Machado Join Date: May 2014 Posts: 271 Rep Power: 12	As LuckyTran said, you can get t by the surface integral. Do not forget to adjust the reference values (properties, length, etc.) for your case, because they are used to compute the mean and local Nusselt number. yomilayeni likes this.

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September 21, 2015, 00:08		#4
yomilayeni New Member Abayomi T. LAYENI Join Date: Sep 2015 Location: Lagos, Nigeria Posts: 16 Rep Power: 10	Thanks. It does work. How do I make a surface monitor though?

September 21, 2015, 00:10		#5
yomilayeni New Member Abayomi T. LAYENI Join Date: Sep 2015 Location: Lagos, Nigeria Posts: 16 Rep Power: 10	How do I adjust the reference values? I thought the surface integral and selection of the name section takes care of that.

September 22, 2015, 13:13		#7
yomilayeni New Member Abayomi T. LAYENI Join Date: Sep 2015 Location: Lagos, Nigeria Posts: 16 Rep Power: 10	Thanks Bruno Machado. I seem no to be able to find the Solution set up menu you are referring to.

September 22, 2015, 14:59		#9
yomilayeni New Member Abayomi T. LAYENI Join Date: Sep 2015 Location: Lagos, Nigeria Posts: 16 Rep Power: 10	I am using ANSYS Fluent

September 22, 2015, 15:47		#10
yomilayeni New Member Abayomi T. LAYENI Join Date: Sep 2015 Location: Lagos, Nigeria Posts: 16 Rep Power: 10	I am using ANSYS Fluent 14.5

September 23, 2015, 16:12		#12
yomilayeni New Member Abayomi T. LAYENI Join Date: Sep 2015 Location: Lagos, Nigeria Posts: 16 Rep Power: 10	Thanks AHF. Got it