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How to couple Fluent VOF with EDEM

Hey I am trying to do a VOF simulation in fluent and couple it with Altair EDEM to see how water flows around one particle (an example problem)

This is my understanding of the Coupling API

Please give me any idea on how i should modify the Lib-EDEM-Coupling or EDEM-CFD-Adapter build so that the particle i put in EDEM will experience the force from water

This is the toy problem i have created.

Without coupling just the VOF model

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Stephen Cole

Hi, modifying the coupling would be challenging but I'd start by revieing the documentation here:

https://help.altair.com/edem/topics/coupling_interface_programming_guide/introducing_coupled_edem_cfd_simulation_c.htm

Which gives an overview of the coupling process and code.

Regards

Stephen

satri

I have seen that. But i am looking for a example. Is there any example problem for this?

I have been checking out Fluent and Acusolve i have not come across any examples of such a kind. Can you point out at any examples?

Stephen Cole

Hi Satri,

The best example is probably the coupling code you have refrencesd, as this is all the code avalabile to couple EDEM and Fluent.

There is an alternative coupling example for EDEM and OpenFoam (this has not been updated for a few years):

https://community.altair.com/community/en/edem-openfoam-coupling?id=kb_article&sysparm_article=KB0122037

Or starting from a simpler coupling example of returning forces to geometries:

https://community.altair.com/community/en/edem-coupling-interface-applying-pressure-to-a-geometry?id=kb_article&sysparm_article=KB0121935

Regards
Stephen

satri

applying pressure through open foam is a good example. But i am trying to see if i can get any fluent or acusolve example.

say i hypothetically i am trying to do this in fluent first.

This is where edem enters fluent on line 229 and on line 263 it goes to a function where the actual value is computed

This is the location where a particle will receive some kind of force from fluent line - 118

so suppose i do it with fluent how should i apply force ? my belief is this is the command i should use to apply the force from VOF but how do i do this?

Stephen Cole

The forces/velocities are calculated from Fluent, it maybe best to check the Fluent documentation for the method of extracting and calculating the forces.

satri

Hey please tell me how to do this in acusolve…

Stephen Cole

Hi Satri,

You can find the e-learning for EDEM-AcuSolve here -

https://learn.altair.com/course/view.php?id=176

And there are some tutorials here

https://help.altair.com/hwcfdsolvers/acusolve/topics/chapter_heads/particle_simulation_r.htm

Regards

Stephen