[Brandon Han]

Hello, everyone. This is Brandon Han. I have a problem and I really hope someone can help me.

What I'm trying to do is to calculate the heat transfer coefficient of a certain wall(or zone).First of all, the wall is one of the boundaries and I'm wondering how to define its boundary condition. I don't know the temperature of the wall. Should I define the wall as heat flux=0 or something else？

Also, I see there're two heat transfer coefficients in Surface Integrals-Wall Fluxes. One is surface heat transfer coef. and the other one is wall function heat trans. coef.. Under this circumstance I think I should report the surface heat transfer coef. but it seems that the coef. is equal to 0 when the wall is set as heat flux=0. The coef. can be calculated when the wall is set to fixed temperature. What should I do under this circumstance? Should I directly use the coefficient of Fluent, or calculate the coefficient myself?

I really need your help and I really appreciate it.

Brandon Han