Fluids

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Topics related to Fluent, CFX, Turbogrid and more.

CFD-DEM Modeling using DDPM

    • medhavi
      Subscriber
      Running first time step successfully injected the particles in the bed and an initial bed height was achieved. Now for the remaining time steps, I want to include air flow in the spouted bed. What could be done to prevent injection of a new set of particles in the bed in the consecutive simulation run, without disturbing already settled particles?
       
      I have attached a snapshot of the initially settled particles.
    • Amine Ben Hadj Ali
      Ansys Employee
      Set stop time to zero and particle mass flow to zero.
    • medhavi
      Subscriber

      Thank you!


      Also, could you explain what could be the reason for reversed flow at pressure-outlet?

    • Amine Ben Hadj Ali
      Ansys Employee

      might be physical or numerical and general due to pressure field. If physical it should happen if numerical you will then require to create a sort of venturi to accelerate the flow.


       


      I would at first ignore that because the effect might be physical for your case. Good habit to have the outlet far away from real outlet and do reporting at  the real outlet. 

    • medhavi
      Subscriber

      Thanks, I will try that out.

    • Amine Ben Hadj Ali
      Ansys Employee

      Yes. Please mark as is solved.

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