Discussion Forum

October 2, 2012 12:09pm UTC in response to Anup Paul

Re: Conjugate heat transfer Interface boundary condition

COMSOL imposes temperature continuity at the fluid-structure boundary in a conjugate heat transfer problem. There is no need for a different thermal boundary condition there. That boundary condition accounts directly for heat loss from the solid through conduction and the fluid flow that results accounts for convection.

Nagi Elabbasi
Veryst Engineering

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November 4, 2012 11:03am UTC in response to Anup Paul

Re: Conjugate heat transfer Interface boundary condition

Daer Nagi

Its fine that comsol itself taking care of interface boundary condition as heat loss from the solid. However, in my problem the solid is under laser heating (consider as a volumetric heat generation based on Beer-Lambert law)in which i am defining optical properties for solid as well as for fluid such that fluid light absorption characteristic is greater than that of solid. I should get a maximum temperature in the fluid domain not in the solid domain because of higher light absorption characteristic of fluid. But , results shows exactly opposite. The max temp is obtained at the solid domain rather than fluid. If my explanation is correct, how to resolve this issue?



rgds

Anup

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November 9, 2012 1:20pm UTC in response to Nagi Elabbasi

Re: Conjugate heat transfer Interface boundary condition

thanks


rgds

Anup

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