Discussion Forum

Forum Home

New Discussion

Note: This discussion is about an older version of the COMSOL Multiphysics^® software. The information provided may be out of date.

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

How Does a "Temperature Boundary" Handle Heat Flux?

Posted Aug 1, 2015, 12:57 p.m. EDT Heat Transfer & Phase Change, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.4 1 Reply

ThePinkGeologist

Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

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 Aug 3, 2015, 2:06 a.m. EDT

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

Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

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

Note that while COMSOL employees may participate in the discussion forum, COMSOL^® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Discussion Forum

How Does a "Temperature Boundary" Handle Heat Flux?

Suggested Content