Temperature dependent boundary condition

Please login with a confirmed email address before reporting spam

Hi,

I am trying to model heat transfer in a cryostat cooled by a pulse tube cryocooler. One approach is to set a fixed heat flux at the pulse tube's coldhead. However, more realistically, the cooling power (or heat flux at the coldhead) is a function of the temperature at both the first and second stage coldheads (see a capacity curve for example).

So my question is -- can I define the heat flux at a surface to be a function of the temperature at two locations in my model?

Thank you very much in advance, Joelle


Reply

Please read the discussion forum rules before posting.

Please log in to post a reply.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.