Fluids

Fluids

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Why is the flow result of the porous media model incorrect?

    • h395523899
      Subscriber

      My model is a simple rectangular parallelepiped medium


      10*10*50 mm


      Permeability 1 D


      Entrance pressure 1000000 pa.


      Export pressure 0 pa


      Water density 1000 kg/m3


      Viscosity 1 mpa.s



      If calculated using the permeability formula



      The flow rate Q should be (1*9.869*1)/(1*5)=1.9738 cm3/s=1.9738*10^-6 m3/s

    • h395523899
      Subscriber

      Formula calculation results are different from simulation results


      Is this because of the error generated by the simulation?


      Or is there a problem with the parameters I set?

    • DrAmine
      Ansys Employee

      The formula is neglecting convective and diffusion transport but though the results are not far from one another. You can try if physical velocity would enhance the run.

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