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How to define BC for internal layers

  1. Feb 19, 2009 #1
    Hi all,

    I am new to this forum and COMSOL. I want to define the temperature at the common surface of two cylinders in contact. When I model the cylinders, the common surface (middle surface) is not active for defining any BC. Please tell me how can I do this in COMSOL. Thanks.
     
    Last edited: Feb 19, 2009
  2. jcsd
  3. Feb 20, 2009 #2

    GT1

    User Avatar

    go to Physics->Boundary setting->mark the interior boundaries checkbox.
    and then you can set BC.
     
  4. Feb 20, 2009 #3
    Thank you very much.
     
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