2D Axisymmetric Steady State Thermal Analysis

- April 24, 2020 at 10:45 pm
  
  Jonahbt40
  Subscriber
  
  Hello Everyone,
  
  I am performing a 2D axisymmetric steady-state thermal analysis on a cylindrical shell, and I had a question regarding how to set up heat flows into the shell.
  
  I want 10W of heat to be flowing into the interior wall of the shell (that is 10W total distributed over the entire wall).
  
  I am doing this as a 2D axisymmetric problem, so I am setting up heat flows on a rectangle that will be rotated around. Would I simply set up a heat flow of 10W into the inner edge of the rectangle, or is it more complicated than that?
  
  This is question I have in general, how to translate the forces, heat flows, etc… that will be applied to a 3D object, into those that will be applied to the cross section used for a 2D axisymmetric analysis.
  
  I am rather new to ANSYS so thank you for your patience.
- April 25, 2020 at 12:58 am
  
  peteroznewman
  Subscriber
  
  If you have a cylindrical cavity in an axisymmetric model, then there are three edges that represent the top, side and bottom of that cylindrical cavity. You could apply a total heat flow of 10 W to those three faces by picking those three edges.
  
  If this answers your question, click Is Solution below this post or ask a follow-up question. Please use the Insert Image button and give a sketch or screen snapshot of a specific example where you are uncertain how to convert a 3D problem into 2D.
- April 27, 2020 at 7:59 am
  
  Jonahbt40
  Subscriber
  
  Hello peteroznewman,
  
  Thank you for the quick reply! And that would be physically equivalent to applying 10W to the entire inner surface of the 3D geometry?
- April 29, 2020 at 12:29 am
  
  peteroznewman
  Subscriber
  
  Yes.