Topics relate to Fluent, CFX, Turbogrid and more

Expression for moving mesh

    • Dr Tuan Mohammad Yusoff Shah

      Hi all,

      I am trying to simulate a closing of ball valve which would require sliding mesh setup. I would like the flow to start from t = 0 until certain time (eg t = 5 s) then the valve will start to rotate (maybe in 4 seconds) then stop rotating and the simulation will still continue up to another 5 - 10 seconds. It will be something like this:


      0 < t < 5, rad/s = 0;

      5<= t <= 9, rad/s = 0.5 

      t > 9, rad/s = 0


      Hope to get some advise here :). 



    • Rob
      Ansys Employee

      You'd set the motion in the cell zone panel. I'd start here https://ansyshelp.ansys.com/account/Secured?returnurl=/Views/Secured/corp/v231/en/flu_ug/flu_ug_expressions.html for the syntax. 

Viewing 1 reply thread
  • You must be logged in to reply to this topic.