I have just started to use CFX. I am trying a few test cases as part of an assignment. One of them involves a cylinder inside a rectangular duct. The cylinder is heated while the duct is cooled. I have done simulations and it all works out. But what I cannot find out is how to find the heat flux as from one of the walls. I though you could use functions as I found out the mass flow rate for another example before. But the variable heat flux does not appear. Any help on how to finish this will be appreciated.