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[Jan Stránský <question261529@xxxxxxxxxxxxxxxxxxxxx>]

Question #261529 on Yade changed:
https://answers.launchpad.net/yade/+question/261529

    Status: Open => Answered

Jan Stránský proposed the following answer:
Hi Behzad,

you have more options:

1) use O.bodies.appedClumped(facets) to create a clump, which you can aplly
force to. Currently it does not work with facets, but it should not be
difficult to make it work with non-spherical shapes. I don't have time now
to work on it..

2) use normal bodies and use RotationEngine on them, each (or each a few)
time step checking forces on individual facets and apdate angular velocity
according to the value (i.e. creating PyRunner doing the same as
NewtonIntegrator :-)

I like no 1 most (if it works), you can ask some other developers for the
help :-)

cheers
Jan


2015-02-01 20:36 GMT+01:00 behzad
<question261529@xxxxxxxxxxxxxxxxxxxxx>:

> New question #261529 on Yade:
> https://answers.launchpad.net/yade/+question/261529
>
>
> Hi,
>
> I need to create(or import) a cylindrical-shape body and as I see in any
> case this cylinder is presented by an assembly of facets which means
> several bodies.
>
> However, what I want to do is measuring the viscosity of a material. It
> means we apply a moment on a cylinder surrounded by spheres  and we measure
> the shear rate (angular velocity).
> So, the problem is how can we treat the cylinder as a single rigid body?
>
> Thanks .
>
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