CFD-DEM coupled simulation for snow accumulation on a geometry

Kiran Purushothama Keshavan
Kiran Purushothama Keshavan Altair Community Member
edited March 4 in Community Q&A

Hello all,

I was going through the article given below to simulate snow accumulation on a car geometry.
Link

The methodology is a complete DEM approach, what would you suggest for a coupled solution through a CFD - DEM approach to the same snow accumulation on this geometry. I'm particularly thinking of meshing and how I need to setup the simulation.
My aim is to couple Ansys Fluent with Altair EDEM,
Any insight would be greatly appreciated.

Regards,
Kiran

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Answers

  • Stephen Cole
    Stephen Cole
    Altair Employee
    edited March 4

    Hi Kiran,

     

    From the DEM perspective the CFD solver is 'just' adding another force to the particles so a lot of the mesh considerations are independent of the EDEM solver.  You  could look at 1-way coupled solution if the flow field is not going to change over time in which case you can choose what mesh is best for the CFD or 2-way where you need to consider the mesh in a bit more detail.  If you use EDEM-Fluent you have to have the Fluent mesh larger than the particles or if you use EDEM-AcuSolve you can have smaller mesh cells on the CFD side.


    We have some EDEM-Fluent e-learning here https://learn.altair.com/enrol/index.php?id=171

    and EDEM-AcuSolve (shortly to be updated to show latest GUI) here - https://learn.altair.com/course/view.php?id=176

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