1 Reply Latest reply on Mar 31, 2011 2:34 PM by Paul Kellner

    Difference in Circular and Normal Symmetry

    Won Lek Chua

      Hi guys,

       

      I have a cylinder type of model (similar to a pipeline). I have cut into a 1/12th portion of the circular along the centre line of the cylinder.

       

      When I had my training on Simulation, I have been told to use circular symmetry on this kind of cylindrical shape problem.

       

      However, recently i found out that we can apply normal symmetry too on both faces.

       

      Can I know what are the differences between circular and normal symmetry and why am I allow to use normal symmetry (in my example)?

      I can post a picture of my example if needed.

       

      Further more, I realised for the same problem, normal symmetry used 6 minutes to solve, but circular symmetry use up to more than 2 hours (maybe more, and maybe crash the STAR Solver).

       

      Why?

       

      Thanks.