Smoke sims can be used as a force to influence other simulations. It is even possible to affect a smoke sim with a smoke sim.

Smoke sims can be used as a force to influence other simulations. It is even possible to affect a smoke sim with a smoke sim.
This setup creates particle area for ground collision automatically. You can choose between an animated version or a static version via the trail node.
This setup divides particles randomly into 3 groups. These groups are then affected by different forces to divide them into 3 piles.
This setup creates a balloon with a line and emits multiple instances into a cloth sim.
This setup creates a sparkler with dumbparticles for the sparks and a smoke sim on top.