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How Does a "Temperature Boundary" Handle Heat Flux?

Posted 1 août 2015, 12:57 UTC−4 Heat Transfer & Phase Change, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.4 1 Reply

ThePinkGeologist

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In my problem, I am letting a hot body of magma cool in the Earth's crust.

The far lateral boundary in the 2D axi-symmetric setup is prescribed a depth dependent T.

I SEE that when I run the model ... even for millions of years ... the crust retains that temperature prescription. Which is good.

But how is the "temperature boundary" actually handling it when heat from my hot body fluxes over to it?

It doesn't seem the insulate / accumulate
Is there a flux through the boundary?
Is the heat actually just "deleted" when it arrives, since the Temperature cannot be altered?

1 Reply Last Post 3 août 2015, 02:06 UTC−4

Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)

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Posted: 9 years ago

Hi

Basically the FEM code will adapt the local flux density (through your Tset boundary) to adjust the boundary temperature to the set value

--
Good luck
Ivar

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How Does a "Temperature Boundary" Handle Heat Flux?

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