simulating heatflux, convection and radiation on one face
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Hi All,
I am currently trying to simulate a concrete block with a fluid running through a pipe embedded within it it. the aim is to simulate the heat transfer to the fluid based on the energy form the sun on the surface of the concrete. in order to do this i would need to run a transient analysis that accounts for the the heat losses from convection to the atmosphere and radiation. i have tried using expressions for the heatflux value to the surface however continually get syntax errors see below:
My idea was to add the governing equations for convection and conduction to the heat flux.
Any help would be greatly appreciated
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