Particle volume fraction calculation in custom drag model.

fyw
fyw Altair Community Member
edited March 11 in Community Q&A

Hi,

I want to get particle volume fraction in a custom drag model to simulate drag reduction. But I didn't find this property in the inherent properties. I'm finding it difficult to calculate this in a custom drag model because I don't have access to the other particle information when the drag model is called, and I don't know where to store this custom property.

fang yanwei

2024.03.10

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Answers

  • Stephen Cole
    Stephen Cole
    Altair Employee
    edited March 11

    hi Fang,

    Is this for a 1-way (Field data) coupling or a 2-way coupling?  The volume fraction isn't available in the field data coupling, in part as this is only really suitable for cases where the particles don't influence the fluid flow.  

    Regards

    Stephen

  • fyw
    fyw Altair Community Member
    edited March 11
    Stephen Cole_21117 said:

    hi Fang,

    Is this for a 1-way (Field data) coupling or a 2-way coupling?  The volume fraction isn't available in the field data coupling, in part as this is only really suitable for cases where the particles don't influence the fluid flow.  

    Regards

    Stephen

    Hi Stephen,

    It is used for one-way coupling. I would like to make modifications to simulate particle cluster drag deduction in one-way coupling.

    Is there any tutorial on 2-way coupling? I thought it might be possible to use a 2-way coupling module to achieve 1-way coupling.

    Regards

    fang yanwei

    2024.03.11

  • Stephen Cole
    Stephen Cole
    Altair Employee
    edited March 11
    fang yanwei said:

    Hi Stephen,

    It is used for one-way coupling. I would like to make modifications to simulate particle cluster drag deduction in one-way coupling.

    Is there any tutorial on 2-way coupling? I thought it might be possible to use a 2-way coupling module to achieve 1-way coupling.

    Regards

    fang yanwei

    2024.03.11

    Hi Fang,


    You can see the list of EDEM tutorials here - EDEM Tutorials 

    Including multi-physics like AcuSolve-EDEM

    If you could generate a volume fraction 'field' then this could be imported into EDEM and read in the same way as the velocity field.


    Regards

    Stephen

     

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