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Volume at constant temperature
Posted 2013年3月28日 GMT-4 08:47 Heat Transfer & Phase Change Version 4.3a 1 Reply
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Dear all,
I am using the heat transfer module to simulate heat flow through a rod. The rod is connected to a piece of copper that is held at a constant temperature. The problem is that Comsol only gives me the option of selecting surfaces to fix t a constant temperature, and not a volume. Does anyone know how to get around this problem? The rod and copper are joined to eachother with a union.
Thanks
I am using the heat transfer module to simulate heat flow through a rod. The rod is connected to a piece of copper that is held at a constant temperature. The problem is that Comsol only gives me the option of selecting surfaces to fix t a constant temperature, and not a volume. Does anyone know how to get around this problem? The rod and copper are joined to eachother with a union.
Thanks
1 Reply Last Post 2013年3月28日 GMT-4 16:33
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Posted:
1 decade ago
Hi
If you force a constant temperature over a full domain (volume), you can as well ignore it and force a constant temperature at its interfaces.
Think over it, your copper part interacts with the external temperature over its' boundaries, it's not really physical to impose a constant temperature and then apply a diffusion type equation on the domain, it is about a writing 0=0, not the most useful equation, or ?
--
Good luck
Ivar
If you force a constant temperature over a full domain (volume), you can as well ignore it and force a constant temperature at its interfaces.
Think over it, your copper part interacts with the external temperature over its' boundaries, it's not really physical to impose a constant temperature and then apply a diffusion type equation on the domain, it is about a writing 0=0, not the most useful equation, or ?
--
Good luck
Ivar