coefficient of convective heat transfer

Hello everbody

I am new to cosmos works and I am trying to simulate a simplehollow cylinderical die that is heated using a coil.

The heat source is added to the lateral surface of the die and thea convection load is added to the upper surface of the cylinder,

the problem is that solidworks asks for the coefficient ofconvective heat transfer (h) which i do not know.

It depends on the surface temperature of the die at steady state,however I do not it,

so can anybody help me on that?SolidworksSimulation