Local Nusselt Number Around Circular Cylinder!

mskamran · November 9, 2010, 10:09

Hello guys,

I am working on 'Flow & Heat Transfer over a circular cylinder''. I am using c-mesh and constant flux (isoflux) boundary condition at the cylinder surface.

Can anybody please tell me how to calcualte 'Local and Average Nusselt Number' at cylinder surface using FLUENT?

I tried to calculate local Nu but it is not in agreement with the experimental results.

I would really appreciate your help. Thanks!!!!

Kamran

laura_c · May 8, 2013, 05:35

I have the same problem... how did you solve it please?

mskamran · May 9, 2013, 10:12

Hi there,

I just used

xy plots > wall fluxes > nusselt number

select the boundary on which u want to plot.

make sure u put the right length in the reference values section.

e.g. if u hv a cylinder of diameter 2 m, set this as 'length' in the reference values.

thanks

November 9, 2010, 10:09	Local Nusselt Number Around Circular Cylinder!	#1
mskamran New Member sajid Join Date: Jul 2009 Posts: 4 Rep Power: 17	Hello guys, I am working on 'Flow & Heat Transfer over a circular cylinder''. I am using c-mesh and constant flux (isoflux) boundary condition at the cylinder surface. Can anybody please tell me how to calcualte 'Local and Average Nusselt Number' at cylinder surface using FLUENT? I tried to calculate local Nu but it is not in agreement with the experimental results. I would really appreciate your help. Thanks!!!! Kamran elham-u likes this.

May 9, 2013, 10:12	Nusselt number	#3
mskamran New Member sajid Join Date: Jul 2009 Posts: 4 Rep Power: 17	Hi there, I just used xy plots > wall fluxes > nusselt number select the boundary on which u want to plot. make sure u put the right length in the reference values section. e.g. if u hv a cylinder of diameter 2 m, set this as 'length' in the reference values. thanks

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May 8, 2013, 05:35		#2
laura_c New Member Laura Join Date: Apr 2013 Posts: 15 Rep Power: 13	I have the same problem... how did you solve it please?