Fluids

Fluids

Fluidized bed velocity (CFD-DEM)

    • ChanonB
      Subscriber

      Hello,


      I'm running a bubbling fluidized bed model using Psuedo 2D CFD-DEM. I have some question about my condition. I want to simulation the 200 micron particle's packed bed in this model which I created by injection file. This file shows the parcel diameter is 2500 micron. I want to set the velocity inlet which calculate based on Archimedes number. What the value of diameter that I must calculate to find the velocity, particle diameter or parcel diameter ? 


      Thank you


      Chanon B.

    • RK
      Ansys Employee

      Hello, 


      Using the Archimedes Number, usually particle diameter is used to set the minimum fluidization velocity. 


      Regards,


      Rahul 

    • DrAmine
      Ansys Employee

      Harnby, N; Edwards, MF; Nienow, AW (1992). Mixing in the Process Industries (2nd ed.). Elsevier. p. 64.

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