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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Unrealistic Heat Transfer Coefficient and Total Surface Heat Flux values › Reply To: Unrealistic Heat Transfer Coefficient and Total Surface Heat Flux values

November 30, 2023 at 8:11 pm
w.u.maddumage
Subscriber

Hi Federico,

Thanks again for your excellent suggestions. 

Changing the reference temperature and trying to match the experimental HTC is doable and I will try it.

But what about the surface heat flux? With this HTC approach, I will be relying on the Total Surface Heat Flux. I am not entirely sure that my total surface heat flux is correct. In some regions where the metal geometry contacts the air, I'm obtaining zero and negative results. As far as I understand, having zero or negative Total Surface Heat Flux values in areas where the metal temperature is higher than the fluid seems improbable.

Do you have any advice about my heat flux values? 

Thanks,

Waruna