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differences between external temperature and ambient temperature

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Hi
Could you tell me the differences between external temperature and ambient temperature in the boundary condition about heat flux of Conduction in porous media model?
Thanks.

1 Reply Last Post 15.04.2012, 03:58 GMT-4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)

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Posted: 1 decade ago 15.04.2012, 03:58 GMT-4
Hi

there are several temperatures used in COMSOL, the best is to check the internal equations in the equations view to be 100% sure. But normally ambient temperature is the one used for reference (initial conditions, material reference etc) while external temperature for a fixed BC temperature condition is the one you impose on that boundary, or for a heat exchangne BC the one you use as refrence for the h[W/m^2/K]*(T-Text) definition

--
Good luck
Ivar
Hi there are several temperatures used in COMSOL, the best is to check the internal equations in the equations view to be 100% sure. But normally ambient temperature is the one used for reference (initial conditions, material reference etc) while external temperature for a fixed BC temperature condition is the one you impose on that boundary, or for a heat exchangne BC the one you use as refrence for the h[W/m^2/K]*(T-Text) definition -- Good luck Ivar

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