Fluids

Fluids

“calculation complete” but results are same as initial condidtion.

    • palash
      Subscriber

      I'm simulating capillary rise in a narrow tube for a project. 2 phase Eulerin model is used and upwind scheme for pressure and momentum is the first order for both.

      TIme step is 0.0001 sec. primary phase is air and phase 2- water is patched in the model after initialization.


      following is the geometry .

    • palash
      Subscriber
      I've taken reference from this youtube video.. my every action is the same even the I'm having the above results.
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  • Rob
    Ansys Employee
    How many time steps have you completed?
  • palash
    Subscriber
    Thank you Rob . Ir took 80 iterations with time step of 0.0001 sec.


  • Rob
    Ansys Employee
    So one time step? It may take a bit longer for the flow to develop.
  • palash
    Subscriber
    Ok.but what do I do for that? Do I have to increase the time step size?

  • Rob
    Ansys Employee
    Run more time steps.
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