Learning Forum

[atulsingh92]

With energy condition on, there is a drop down menu available to select a metal default at Alumninum for a thermal BC.

I wanted to know what is the purpose of this definition, and how does this affect the simulation?

Lets say I have a pipe with only the volumetric domain simulated in fluent, and I have an inlet-walls-outlet BC definition.

Do I need to think about the metal chosen for walls BC or can be left as default if it is only a volume region? If I am solving the energy equation, and lets say the pipe is conducting a hot fluid cooled with ambient temperature given as Temp BC on walls, then does this selection of metal have an effect on my temperature results?

[Rob]

If the wall has a thickness it's so the solver knows what the conductivity is. You can add solid materials in the same way you do fluids, so could use copper, steel, wood etc

[atulsingh92]

But if it has no thickness, and just the fluid domain, then having any metal over here will not affect the result, correct?
If lets say the result is observing wall tempearatures?

[Rob]

Correct, it'll only matter if there is a thickness.