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Comsol Multiphysics/Script - Heat transfer problem

  1. Apr 30, 2008 #1
    Hi everybody,

    I'm a new user of Comsol Multiphysics and Comsol script. And I'm working on a conduction problem, with convective and radiative heat flux at one boundary. The geometry is quite simple: 2D rectangle. But the upper boundary is supposed to be moving with time (linear or exponential law)

    How do I set a heat flux boundary condition on this boundary and specify at the same time that the boundary is moving???

    Can I do it on the Multiphysics interface or should I do it through the script (how?) ?

    I tried to modify the "geometry field" in the script by setting a rectangle with a dimension moving with time, but I get an error when I try to solve.

    Please help!!!
  2. jcsd
  3. Jun 7, 2008 #2
    Hi everybody,
    In ComSol, how can I impose a condition of the jump of the temperature ([T] = Tu - Td) at the interface between two subdomains in the heat conduction problem?
    Thank you in advance.
    Last edited: Jun 7, 2008
  4. Oct 19, 2009 #3
    Hi everybody!
    I have a problem with Comsol: I'm using the heat transfer application mode- conduction and convection in 2D axial simmetry.I need to impose an heat flux of a certain value in a simple subdomain, a rectangle. Comsol let me impose heat transfer only on boundaries, but not inside a subdomain, how can I do?
    Please help! Thank you in advance
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