Particles going around an object...

So I would like particles to on a path, go around an object, an then re-convene on that path. I tried using a curve guide, but all the particles only flow on one side. Can somebody offer some suggestions?

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You could use a transparent “tube” the particles could be flowing through. The tube would be a collision object as would the thing in the middle.

try using curve guide, but maybe try 2 particle systems?

Another way to do it is to make one curve guide and one emitter; duplicate these and move the duplicates to another layer, then rotate the duplicate curve 180 degrees. Curve guides on one layer do not affect particles on another layer.


Great idea Alan! Thanks everybody for your suggestions