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[Jan Stránský <question706560@xxxxxxxxxxxxxxxxxxxxx>]

Question #706560 on Yade changed:
https://answers.launchpad.net/yade/+question/706560

    Status: Open => Answered

Jan Stránský proposed the following answer:
Hello,

next time, please do not merge two problems into one question ([1], point 5).
Also more information then just very general one sentence description is usually better for good answers [1]

> How to drop particles in the box

Depends on definition of "drop" and "the box".
E.g. using gravity deposition [2].
Or triaxial test tutorial [3].
Or ...

> to a certain void ratio

In general modifying material parameters, "drop" loading or particle size distribution.
One version in [3] does exactly a process how to match certain void ratio

> remove one side of the box

O.bodies.erase(bodyID) # [4]

> see them roll

depends on definition of "see".
Probably just using Yade GUI..
Or export them and use external visualizing software (Paraview).
Or ...

Cheers
Jan

[1] https://www.yade-dem.org/wiki/Howtoask
[2] https://yade-dem.org/doc/tutorial-examples.html#gravity-deposition
[3] https://gitlab.com/yade-dev/trunk/-/tree/master/examples/triax-tutorial
[4] https://yade-dem.org/doc/yade.wrapper.html#yade.wrapper.BodyContainer.erase

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