1 Reply Latest reply on Jul 23, 2013 12:25 PM by Jared Conway

    flow simulation of a tank

    Flavio Gaggi

      Hi, I'm a beginner in SWFS and I need a help.

      I would like to simulate the fluid (water) through a tank, where a mass flow enter at atmospheric pressure, is sucked by the submerged pump and the same mass flow is exausted with increased pressure.

      I've got:

      -pump curve, 3000rpm

      -sw model (tank, impeller and pump casing, driveshaft....)

      Questions:

      1) Is it possible to replace the pump by another coponents, something like an internal fan user defined to avoid the simulation through the pump? What kind of BC are needed to ensure the right sense of cirulation of the water?( i tried to put atmospheric pressure input and, 3bar output and the flow was in wrong sense).

       

      I suppose to use the rotating region to simulate the pump behavior.

      2) What are the right BC on input/output flow of the tank? ( non time dependence simulation)

      3)What is the right shape of rotating region?close to impeller shape or same as volute chamber or maybe something else?(see the file attached)

       

      Thanks

        • Re: flow simulation of a tank
          Jared Conway

          Check the tutorials on this one. There is an example that will answer all your questions. Also, the technical reference and solving engineering problems will have a lot of info to build on what you want to know. The kb is also good for this.

           

          One thing to consider is if you aren't designing the pump, you could replace it with an internal fan.