Fluids

Fluids

Topics related to Fluent, CFX, Turbogrid and more.

Node coordinates in moving mesh

    • Ratnadeep Nath
      Subscriber

      In fluent, I am using moving mesh involving rotor and stator. However, for a given case, the node ccordinate in rotor changes after a given timestep. so is there any way that I can get same node ccordinates after a few time step.

      Note: After completion of 1 complete cycle also, the node number changes

       

    • Federico
      Ansys Employee

      Hello, 

      can you clarify your question? If your mesh is moving, wouldn't you expect for the node coordinates to change with time?

      • Ratnadeep Nath
        Subscriber

        Yes, the node coordinates will change but after completing a full rotation/cycle the node coordinates are changing whereas I thought that the node will occupy the same position after one complete cycle. Please clarify this portion.

        • Federico
          Ansys Employee

          How far off are we talking about? And how are you ensuring that you are getting exactly 1 revolution?

        • Ratnadeep Nath
          Subscriber

          Becaue I have given a particular value of mesh rotation and timestep. Secomdly for a given problem, a maximum 1 degree rotation per timestep is restricted. And that is how the number of iteration (say 1000) required for a complete rotation can be found. I am just checking the node coordinates after that particluar number of iteration like at 2000, 3000, 4000 etc.

Viewing 1 reply thread
  • The topic ‘Node coordinates in moving mesh’ is closed to new replies.