Fluids

Fluids

ansys fluent simulation

    • LILI
      Subscriber
      I have a new problem.
      I want to make a simulation of the collision between the droplet and the plate. In the vof model, the collision of the droplet with the wall will not rebound?Why? Is my setting  wrong? I hope to get your help.Thank you very much.
      My simulation results


       

    • Rob
      Ansys Employee

      That's the correct solution: VOF is a fluid phase so it'll splat/splash depending on the speed of impact etc.  Are you trying to see it bounce? If you want to see the splash you'll need a much finer mesh and keep running the model as the splash is more likely to occur as the "back" of the droplet hits the plate. 

    • LILI
      Subscriber

      When I continued to run, the water gradually spread on the flat plate without any splash or bounce. Why? My goal is to observe the rebound phenomenon,but how should I set the relevant parameters?

    • Rob
      Ansys Employee

      Do you mean splash or bounce? The droplet will only splash if there is enough energy (momentum) when it hits the base to overcome the surface tension forces. 

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