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[Yuxuan Wen <question677858@xxxxxxxxxxxxxxxxxxxxx>]

Question #677858 on Yade changed:
https://answers.launchpad.net/yade/+question/677858

Yuxuan Wen posted a new comment:
Hello Bruno,

I am reading your paper that mentioned above and trying to formulate the
same shear flow which is shown in your paper. I read your
periodicSandPile.py code and take it as a benchmark to formulate the
shear flow. But I still met some questions , may I ask you these
questions?

1) In your periodicSandPile.py code, after using makeCloud to generate
the sphere particles, in the following sentence you use
O.bodies.append([spheres(s[0],s[1]) for s in sp] ) command to add the
spheres in the body. I am so confused  that in many other examples,
makeCloud command is enough to generate the spheres, so why we need to
add this following sentence? I tried to delete this sentence and the
simulation just not works, the particles are out of the region that
makeCloud command has defined.

2) In your paper,  to avoid preferential slip zones near the plates,
the first layer of spheres in contact with a plate is fixed to the
plates by highly cohesive contacts. I am searching the method to
identify the spheres that in contact with the plate and the way to add
cohesive forces. Would you please tell me which wrapper or the module
should I use? Thank you so much! I am a fan of you and really admire
your work!

Best Regards,
Yuxuan

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