Hello I am modeling a smooth straight channel in Star CCM+. I want to find out the average Nusslt Number on different walls of the channel like side ad bottom walls. Also How can I find the total average Nusslt Number of the channel flow? Reply will be appriciated. Regards Waseem

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1. Create area averaged report(s) of heat transfer coef field function on the surface(s)

2. Create new field function(s) called Nusselt # and define is as per its formula using the field function(s) created by the above report(s), fluid conductivity and char. length

3. Create new 'max' report with N# as the field function and run this report.

http://www.adapco-online.com/adapco_...frontpage.html ->Dr.Post->Calculating->Calculation of Nusselt Number

Ping This was very helpful: In CCM+ there is a field fucntion of Nusttle number. Averaging it directly would give the same result, I assume. Waseem