New question #696253 on Yade:
https://answers.launchpad.net/yade/+question/696253
I am trying to simulate a transfer chute with a mix of spherical and polyhedra
particles.
When I only have spherical particles the following interaction loop does a
great job of modelling the flow through the chute:
InteractionLoop(
[
Ig2_Sphere_Polyhedra_ScGeom(),
Ig2_Sphere_Sphere_ScGeom(),
Ig2_Facet_Sphere_ScGeom(),
],
[
Ip2_FrictMat_FrictMat_MindlinPhys(en=Restitution, gamma=Stickiness,
krot=RollRes),
],
[
Law2_ScGeom_MindlinPhys_Mindlin(includeMoment=True,
includeAdhesion=True),
],
),
When I add polyhedra, I get a bunch off errors like: <FATAL ERROR>
InteractionLoop:182 virtual void yade::InteractionLoop::action(): None of given
Law2 functors can handle interaction #167+2972, types geom:PolyhedraGeom=10 and
phys:FrictPhys=3 (LawDispatcher::getFunctor2D returned empty functor)
To fix this problem I used the following interaction loop:
InteractionLoop(
[
Ig2_Sphere_Polyhedra_ScGeom(),
Ig2_Sphere_Sphere_ScGeom(),
Ig2_Polyhedra_Polyhedra_PolyhedraGeom(),
Ig2_Facet_Polyhedra_PolyhedraGeom(),
Ig2_Facet_Sphere_ScGeom(),
],
[
Ip2_FrictMat_FrictMat_MindlinPhys(en=Restitution, gamma=Stickiness,
krot=RollRes),
Ip2_FrictMat_PolyhedraMat_FrictPhys(),
Ip2_PolyhedraMat_PolyhedraMat_PolyhedraPhys(),
],
[
Law2_ScGeom_MindlinPhys_Mindlin(includeMoment=True,
includeAdhesion=True),
Law2_ScGeom_FrictPhys_CundallStrack(),
Law2_PolyhedraGeom_PolyhedraPhys_Volumetric(),
],
),
The simulation runs fine but neither polys nor spheres do not appear to have
any coefficient of restitution after I add polys to the simulation. Is there a
ways to force the spheres to use the Mindlin physics? Ideally I'd like the
polyhedra to use the mindlin physics as well. Right now it looks like Mindlin
Law2 and Ip2 are ignored and everything is defaulting to CundallStrack.
Do I need to modify the C++ code to get polys to have a coefficient of
restitution or am I missing something here?
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