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how to set the domain temperature?

Posted Apr 6, 2013, 8:20 a.m. EDT Heat Transfer & Phase Change Version 4.3 1 Reply

Yu Haiqun
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In heat transfer in solid model I need to set the domain temperature as a constant value(such as T=300K) In all the computing process. Now I can only set the boundary temperature.Thanks.
1 Reply Last Post Apr 7, 2013, 4:59 a.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago Apr 7, 2013, 4:59 a.m. EDT
Hi

fixing the temperature of a domain to a fixed T value seems for me a bit strange, as approach, but basically it means you have to add a domain heat source field Q_domain(x,y,z,t) such that the temperature is set to your desired value.

If this Domain condition is not listed, it's rather straightforward to implement it via the weak constraints, by similarity with a constant T boundary condition (look at the equation view see options preferences ...)

--
Good luck
Ivar
Hi fixing the temperature of a domain to a fixed T value seems for me a bit strange, as approach, but basically it means you have to add a domain heat source field Q_domain(x,y,z,t) such that the temperature is set to your desired value. If this Domain condition is not listed, it's rather straightforward to implement it via the weak constraints, by similarity with a constant T boundary condition (look at the equation view see options preferences ...) -- Good luck Ivar

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