Question #707875 on Yade changed:
https://answers.launchpad.net/yade/+question/707875
Status: Open => Answered
Karol Brzezinski proposed the following answer:
Hi Ruidong,
In this loop, you iterated over the wall but denoted elements 'f', while
in the loop you referred to 'b', so you did not prescribe velocity to
wall facets. Should be:
###
for b in wall:
x,y,z = O.bodies[b].state.pos
dist = math.sqrt(x*x+y*y)
n = Vector3(x/dist,y/dist,0)
O.bodies[b].state.vel = rvel*n
###
Cheers,
Karol
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