Average Nusselt Number
 

Hi,

I am working natural convection. But I did not compute average nusselt

number using fluent post processing.

I added as an attachment. In the article average nusselt number is 1.01 but I

did not reach this result.

How I compute average nusselt number for model using ansys fluent post

processing.

My fluid thermal conductivity 0.013

Model 0.1m*0.1m

total surface heat flux w/m2---->> wall1=35556
wall2=0.022786458
wall3=-35556
wall4=-0.022786458
Thank you in advance.