ASCII export for a 1 way coupled sim

Kiran Purushothama Keshavan
Kiran Purushothama Keshavan Altair Community Member
edited August 23 in Community Q&A

Hello,

I want to import velocity field from fluent as an ASCII file. I read the help document here https://2022.help.altair.com/2022.2/EDEM/Creator/Physics/Field_Data_Manager/new_topic.htm
[3D Vector: X Y Z dx dy dz]
I am confused as to what X, Y, Z and dx, dy, dz mean 
For my case since I need to import velocity does X, Y, Z mean the x, y and z component of velocity?
(fig 1)
and does dx, dy and dz mean the coordinate axes for each velocity vector?
(fig 2)

Thanks,
Kiran

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Answers

  • Stephen Cole
    Stephen Cole
    Altair Employee
    edited August 23

    Hi Kiran,

    X,Y and Z are the positions of the field in SI units (meters).  dx,dy,dz are the field (velocity) values.

     

    Regards

    Stephen

  • Kiran Purushothama Keshavan
    Kiran Purushothama Keshavan Altair Community Member
    edited August 23

    Hello Stephen,

    Thanks for your reply. 
    Please correct if I'm wrong, does dx, dy & dz mean velocity in x, y and z?

    Thanks,
    Kiran

  • Stephen Cole
    Stephen Cole
    Altair Employee
    edited August 23
    Kiran Purushothama Keshavan said:

    Hello Stephen,

    Thanks for your reply. 
    Please correct if I'm wrong, does dx, dy & dz mean velocity in x, y and z?

    Thanks,
    Kiran

    Hi Kiran,


    That's correct, the x,y,z components of the velocity vector.  


    Regards

    Stephen

  • Kiran Purushothama Keshavan
    Kiran Purushothama Keshavan Altair Community Member
    edited August 23

    Can I use EDEM to study nanoparticles dispersed in a fluid domain? Are there any solver restrictions when it comes to particle size in general or with respect to a 1 way coupled simulation?

  • Stephen Cole
    Stephen Cole
    Altair Employee
    edited August 23
    Kiran Purushothama Keshavan said:

    Can I use EDEM to study nanoparticles dispersed in a fluid domain? Are there any solver restrictions when it comes to particle size in general or with respect to a 1 way coupled simulation?

    Hi Kiran,


    You may begin to see some non-physical behaviour below 1 micron in size, so I would not recommend nano-particles directly however you can always test to confirm for your case.

    You can also consider some form of dimensionless scaling if you are looking to model this, however also worth considering the overall number of particles you would have to simulate. 

     

    Regards

    Stephen

     

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