Simulate heat transfer coefficient

Hi all,

I like to simulate the heat transfer coefficient for a specific flow simulation problem. I don't define any temperatures nor any heat flows. After the simulation is finished, I can get the values for the heat transfer coefficient. But since I don't know, how the coefficient is calculated I don't know how reliable this value is.

How is SW calculating the heat transfer coefficient? What's the formula? What are the significant properties to set up?

SolidworksFlow Simulation