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[Christian Jakob <question232876@xxxxxxxxxxxxxxxxxxxxx>]

Question #232876 on Yade changed:
https://answers.launchpad.net/yade/+question/232876

Christian Jakob proposed the following answer:
Hi,

Two points you forgot:

1. Please set neverErase=True in this line:

Cap =  
Law2_ScGeom_CapillaryPhys_Capillarity(capillaryPressure=10000,neverErase=True)

2. You have to set createDistantMeniscii=True for one step and then  
False... something like

Cap.createDistantMeniscii=True
O.run(1,True)
Cap.createDistantMeniscii=False

Then everything should work fine.

Regards,

Christian

Zitat von Seungcheol Yeom <question232876@xxxxxxxxxxxxxxxxxxxxx>:

> Question #232876 on Yade changed:
> https://answers.launchpad.net/yade/+question/232876
>
> Seungcheol Yeom posted a new comment:
> Hello all,
> First of all, I really appreciate your response.
> I have run the script using yade-daily and it seems it is working.
> However, I would like to check the caplliraty stress whether it is  
> actually applied or not.
> In other words, I would like to see whether the particles actually  
> pull each other due to the capillary.
> I have written a simple script to check as shown in the below:
>
> from yade import utils,qt
> r = 1e-4 #particle radius
> h = 1e-5 #praticle distance
> O.bodies.append([
>    utils.sphere(center=(0,0,0),radius=r,fixed=False),
>    utils.sphere((0,0,2*r+h),r)
> ])
> Newton = NewtonIntegrator(damping=0.4,gravity=(0,0,0))
> Cap = Law2_ScGeom_CapillaryPhys_Capillarity(capillaryPressure=10000)
> O.engines=[
>    ForceResetter(),
>    InsertionSortCollider([Bo1_Sphere_Aabb()]),
>    InteractionLoop(
>       [Ig2_Sphere_Sphere_L3Geom()],
>       [Ip2_FrictMat_FrictMat_CapillaryPhys()],
>       [Law2_ScGeom_FrictPhys_CundallStrack()]
>    ),
>    Cap,
>    Newton
> ]
>
> O.dt=0.5*PWaveTimeStep()
> qt.View()
> O.saveTmp()
>
> It seems that the particle is not moving at all.
> Also, I would like to see whether the force on the particles are chagning.
> Any helps would appreciate.
>
> Seungcheol
>
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