Multiple-particle sedimentation with heat transfer (taking into account natural convection)

Rajani Kant Baro
Rajani Kant Baro Altair Community Member
edited September 10 in Community Q&A

Is it possible to simulate sedimentation of single or multiple particles coupled with heat transfer, such that the fluid follows the Boussinesq approximation for density?

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Answers

  • jerrinjobs
    jerrinjobs
    Altair Employee
    edited September 9

    Hi Rajani

    It is possible to simulate this using CFD-DEM coupling. It would be difficult to approximate using just one solver. Although conduction between particles, and the convection can be taken into account, radiation would not be taken into account. For more information on this coupling, please take a look at: Introduction to CFD-DEM for modelling fluid-particle systems

    Hope this helps.

    Thanks,
    Jerrin Job

  • Rajani Kant Baro
    Rajani Kant Baro Altair Community Member
    edited September 10

    Thanks for the suggestion. I do not need to model the radiation except for conduction and convection. Can you elaborate on how to solve the problem? Single particle sedimentation without heat transfer has been documented in EDEM. Can you guide how to modify the problem to account for heat transfer? The
    bi-directional EDEM coupling is considered, and water-EDEM is the multiphase material in which water density follows the Boussinesq approximation.

  • jerrinjobs
    jerrinjobs
    Altair Employee
    edited September 10
    Rajani Kant Baro said:

    Thanks for the suggestion. I do not need to model the radiation except for conduction and convection. Can you elaborate on how to solve the problem? Single particle sedimentation without heat transfer has been documented in EDEM. Can you guide how to modify the problem to account for heat transfer? The
    bi-directional EDEM coupling is considered, and water-EDEM is the multiphase material in which water density follows the Boussinesq approximation.

    Hi Rajani

    You have the right idea. You can turn on the energy equation in the CFD solver, and also turn on the 'Conduction' physics in the DEM model. The particle-particle conduction will be calculated by the DEM solver, and the particle-fluid convection will be calculated by the CFD solver.

    Here is an example to demonstrate the same: EDEM Bidirectional Coupling with Heat Transfer

    Hope this helps.

    Thanks,
    Jerrin Job

  • Rajani Kant Baro
    Rajani Kant Baro Altair Community Member
    edited September 10

    Can you please check my file and suggest to me what am I missing?

  • jerrinjobs
    jerrinjobs
    Altair Employee
    edited September 10
    Rajani Kant Baro said:

    Can you please check my file and suggest to me what am I missing?

    Hi Rajani

    Unfortunately, I would not be willing to do that. Please verify with the tutorial sent above if you have missed any steps.

    Or maybe someone else in the Community can help you with that.

    Good luck!

    Thanks,
    Jerrin Job

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