Yade

Coupling YADE with CFD

Asked by skonda2

Hi!

I am new to yade and am reading and running some basic models to learn more about it. How good is yade when it comes to coupling it with CFD? I read about this topic in Chen's work, but am not sure what is the current status as far as coupling yade with CFD is concern.
I am looking to carry out DEM-CFD simulation. My initial goal is to create a DEM model of a "random packing of spheres around 20000" in a cube. Then in this domain will carry out CFD thermal analysis. All the spheres would be at initial temperature of 500K. The inlet gas would be a cold fluid at 300K. I will basically study the distance travel by the cold fluid in the domain with varying flow rate.
This is more of a general question than being specific to yade. I would welcome all your suggestions, about what sort of an approach i should use to deal with this problem.

-Shailesh

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Hicham BENNIOU (benniou-hicham-deactivatedaccount) said : 		#1

Hi Shailesh,

Take a look here [1]. Anton Gladky could have some answers also as he's a member of this project.
Hope this helps.

Cheers !

[1] http://www.cfdem.com/

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Bruno Chareyre (bruno-chareyre) said : 		#2

>How good is yade when it comes to coupling it with CFD?

DEM+CFD is partitionned approach where most of the time is spent for either pure CFD or data exchanges between DEM and CFD. So, overall, the performance of yade as a DEM code is irrelevant for estimating the performance of the coupling, especially if you speak of only 20k spheres in a cube. The only thing that matters is if the code is flexible enough to make the implementation of the coupling realistic. On this aspect yade should be not bad.

For the thermal problem I guess you can average the additional balance equations in a way similar to what is done for conventional CFD. I would consider openFOAM for such coupling, as in Feng Chen's work.
https://sites.google.com/site/fchen3/home

Bruno

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Feng Chen (fchen3-gmail) said : 		#3

Hi, Shailesh

YADE-OpenFOAM was not updated since 2011, I also started ESyS-Foam project at https://launchpad.net/esysfoam, however due to personal schedule I do not have much time updating either project. There is no thermal analysis currently and you will need to adapt a OpenFOAM thermal analysis solver into it. The source code and examples are still on the webpage and should be a good reference for your own work. Feel free to ask if you have more questions.

Thank you,

Feng Chen

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