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Can "pipe(G)" block be used to model forced air convection?

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Hello,
i am trying to model a battery pack with forced air convection cooling. The pipe(G) block can be used to transfer heat from gas flowing inside a pipe to intended surface geometry. But it is internal flow. My concern is i want to model heat transfer from the surface to the gas(air). But that will become external flow problem. Is it possible to do so?
please help!
thanks.

Accepted Answer

Yifeng Tang
Yifeng Tang on 11 Jun 2024
I think it's possible. The combination of cross section and hydraulic diameter will give you a circumference; that multiplied by the pipe length is the total heat transfer area. So I would say it's possible.
  9 Comments
Yifeng Tang
Yifeng Tang on 29 Jun 2024
If the heat transfer is happening between the air gap and the cell wall, I think the perimeter should be 2*3*h in your equation.
Yifeng Tang
Yifeng Tang on 29 Jun 2024
But, keep in mind, this is an approximation at best, because I think your formulation is more appropriate for "cubic" shape cells. The gap shown in the picture is really the minimum gap.

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