Simulating 1D Thermal Conduction with Vacuum in Comsol 4.4

[Ksitov]

Hi,
I'm doing a 1D thermal conduction simulation on Comsol Multiphysics 4.4 and my first component is vacuum.

I did'nt found the vacuum in the material list.

Should I create a new component with a null thermal conductivity ?

Thanks

 

[DrClaude]

Can't you select "User defined" for the thermal conductivity (instead of "From material"), and set it to 0? I've never used COMSOL for thermal conduction, but that's what I do for electrical conduction.