Yade

Feng Chen's Yade-OpenFoam coupling model.

Asked by Ed Carlos Alves Rocha

Hello everyone!
In Feng Chen's Yade-OpenFoam coupling model how can I start the Yade loop with OpenFoam? How do I write the FluidDragForceEngine function / engine in the simulation python file on the CFD-DEM coupling?

(https://translate.googleusercontent.com/translate_c?act=url&depth=1&hl=pt-BR&ie=UTF8&prev=_t&rurl=translate.google.com.br&sl=en&sp=nmt4&tl=pt-BR&u=https://sites.google.com/site/fchen3/home/yade-openfoam-src&usg=ALkJrhhn1XzfWcXdprHY9pNuv7gs8cng-g)

For example, I wrote a python file on yade that simulates the trajectory of a tennis ball (a spheres). Now I want to implement a wind flow transverse to the trajectory of that sphere. How do I call the FluidDragForceEngine function / engine and the OpenFoam?

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Robert Caulk (rcaulk) said : 		#1

Have you looked at the examples that he posted?

"
At this point I only posted three examples (under FoamData.tar.gz) which have been tested:

One dimensional upward seepage flow: c1dt

One dimensional consolidation: tzg

Two dimensional fluidized bed: 2dbed
"

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Feng Chen (fchen3-gmail) said : 		#2

Hi, Ed Carlos Alves Rocha:

The YADE-OpenFOAM example was posted around year 2009-2010 based on YADE-0.11.1 which is a very old version and although some python features were added to YADE, python was not supported during that time. Due to personal schedule I was not able to keep that version up to date with the yade main branch.

Basically, to reproduce that example, you will need to use yade-0.11.1 and OpenFOAM-1.4, although I believe you can still get these old versions, it might be a bit difficult to get all things running (however I can still help if you have specific errors).

A newer update for DEM-OpenFOAM is at https://launchpad.net/esysfoam, it was not using YADE but ESyS-Paticle as the DEM simulator, there is also build instructions posted on that site, basically repeating the same seepage/consolidation problem which might be easier to reproduce. Still, the same issue, I am not able to keep the versions up to date, so try to find those old versions of the code (ESyS-Particle-win and OpenFOAM-1.5) and not the latest ones. I am not sure if this is a good place to post ESyS-particle related questions but I am still able to answer questions related to that.

Note that I might not be able to respond you very promptly, however if you need further assistance, please let me know.

Regards,

Feng Chen

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Ed Carlos Alves Rocha (ed.rocha) said : 		#3

Thanks Robert Caulk for the help.

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Ed Carlos Alves Rocha (ed.rocha) said : 		#4

Hi Feng Chen,
Thanks for your answer. I'll try both options. Can I contact you after, by email, to describe the simulation of my master degree and How I can to execute the CFD-DEM coupling?

Regards,
ED

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