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Recent content by purpleb

  1. purpleb

    Mode of heat transfer between two cubes and to its surroundings

    Hi, thanks a lot for your reply and for your help, which I appreciate. How could I mathematically (with a formula) explain that convection does not play a role here? I am trying to determine whether heat radiates from the hot paraffin cube (ca. 100°C) to the other cube or to the surrounding...
  2. purpleb

    Mode of heat transfer between two cubes and to its surroundings

    Hi all, I am trying to mathematically proof that one can neglect convection and radiation when two cubes (paraffin-based, 1x1x1cm) are in direct contact on one side whilst the other 5 sides are perfectly insulated. Any ideas on how to calculate the Nusselt number here? How do you justify...

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