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Particle-Particle Interaction Cutoff

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Hello!

I am trying to use the mathematical particle tracing module to accumulate some particles in a material.
Ultimately I would love to be able to spawn particles, have them travel in some direction then stick to a wall. However, I also do not want them to touch each other.

I figured I could make this happen by using the particle-particle interaction node and applying something like damped force when the particles get close to each other to reach an equilibrium distance.

Anyway, I am running into a problem with the cutoff length I think. I've attached a sample file where I release one particle, let it drift, then release another one some time later. I am using the cutoff length setting, so the first particle shouldn't "feel" any interaction force since the second particle hasn't been released yet. However, it does! I'm not too familiar with this physics set so I don't know exactly how it works, but something doesn't feel right.

Any help would be greatly appreciated.


0 Replies Last Post Mar 21, 2017, 1:10 p.m. EDT
COMSOL Moderator

Hello Zachary Woods

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