Can EDEM domain be different than CFD field for a fixed flow field?

Mahdi_22303
Mahdi_22303 Altair Community Member
edited August 2023 in Community Q&A

Hi everyone,

I am exporting a fixed flow field as a CGNS file from Fluent to be used in EDEM. I wonder if the domain in EDEM can be different from the exported flow field domain? My exported flow domain is. 

-0.1<x<0.5

-0.1<y<.1

0<z<0.02

and EDEM simulation domain is

-0.03<x<0.03

-0.03<y<.03

.001<z<0.018

 

Thank you!

Mahdi.

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Answers

  • Stephen Cole
    Stephen Cole
    Altair Employee
    edited August 2023

    Hi Mahdi,

     

    That is OK we can have different sized domains.  EDEM uses an inversed distance weighting system to check the velocity vectors closest to the particle in order to find the appropriate velocity to apply.

     

    Where you have the CFD domain larger this shouldn't cause a problem however it does use up more memory to store the field, so ideally you could cut this down.  If the field is smaller it is often best to consider a custom model so that the particles don't search for the closest vector when they are outside the domain.

    Regards

    Stephen

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