Specialized solvers are available for dynamic effects such as basic particle systems, aerodynamics, combustion, and granular materials like sand or snow. All simulations can be controlled in similar ways with influences like wind, as well as with colliders.
All the simulation systems have a parameter for the start frame, which is set to 1 by default. You must change this value if you want the simulation to start at a different frame.
Note that as you modify the supplied graphs to customize the effect, the simulation gets reset if the graph must be recompiled. Return to the start frame and play forward to see the effect of your changes.