Yade

Conveyor factory with periodic packing

Asked by Peter

Hi everyone,

In this video[1], he simulated a conveying factory with WooDEM. It seems that he used 'periodic packing' method to continuously generate particles.

I have looked examples of Periodic Boundaries in yade, but did not find a similar method. So, is there a similar method in Yade that can achieve continuous particles flow?

 I will appreciate your help in answering my questions.

Thank you,
Peter

[1] https://www.youtube.com/watch?v=-Q81oGxoz_s

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Jan Stránský
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Robert Caulk (rcaulk) said : 		#1

Hello,

Are you sure "he" is using periodic boundary conditions? If so, how do you know? Is there a script for this video? Also, we typically request that people do not post external links [1] like this.

>So, is there a similar method in Yade that can achieve continuous particles flow?

You can create particles at any time/location that you wish using the basic python interface [2].

[1] https://www.yade-dem.org/wiki/Howtoask
[2] https://yade-dem.org/doc/introduction.html

Cheers,

Robert

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Best Jan Stránský (honzik) said : 		#2

Hello,

You have several options:
- as suggested by Robert, implement the particle creation "manually" (search O.bodies.append, PyRunner etc.)
- using existing features - see examples [1,2,3] (also available in the source code in "examples" directory)

cheers
Jan

[1] https://gitlab.com/yade-dev/trunk/-/blob/master/examples/spheresFactory.py
[2] https://gitlab.com/yade-dev/trunk/-/blob/master/examples/hourglass/hourglass.py
[3] https://gitlab.com/yade-dev/trunk/-/blob/master/examples/packs/packs.py

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Peter (peter-lee2000) said : 		#3

Hello Robert,

Thanks for your reply.

>Are you sure "he" is using periodic boundary conditions? If so, how do you know? Is there a script for this video?

There is not a script for this video. I did not clearly understand the meaning of 'periodic packing' in the title.

>You can create particles at any time/location that you wish using the basic python interface

I will try to use the python interface.

Cheers
Peter

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Peter (peter-lee2000) said : 		#4

Thanks Jan Stránský, that solved my question.