Specify hybrid values for expressions in CFXPost?
When creating expressions in CFXPost, is it possible to force a hybrid calculation?
This question stems from my desire to calculate an average Nusselt number on the top surface of the outlet of a rectangular channel. To obtain the average heat flux I am using the following expression: lengthAve(Wall Heat Flux)@TopLineOut Here's the problem...

Hybrid/conservative value thing does not apply to surface integrals on boundary faces, but you are trying to do a line integral I assume on a boundary face. What I would consider doing is to replace your line integral with a surface integral where the surface you are integrating over is thin, so it is just about a line anyway. Then you evaluate the area integral and that should work fine.

in CFX post go to:
Calculations ==> Function Calculator then set your request. For example lengthAve(Wall Heat Flux)@TopLineOut then at the bottom of Function Calculator tab, Press Hybrid button. after this CFD Post automatically uses Hybrid Values For your Expression :) 
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