determination of the bulk mean temperature for Nu calculation
 

I am interested to calculate local Nusselt number at different downstream locations, and then validate the results with experimental data which are based on the bulk mean temperature.

Do you know if such utility is already available in OpenFoam or one should do that from the beginning. I appreciate your comments!.

Have you got your answer? since I want to calculate local bulk temperature and local Nusselt number in a heated pipe...:)