DropletSource
generate a sequence of spherical droplets
Currently, there are two different options to generate droplets.
In this classical implementation, the user has to provide a (time-dependent) volume flux and a droplet size together with the locations of creation (and an optional list of other parameters), from which MESHFREE automatically generates a sequence of droplets.
In this special implementation, the user has the chance to mark existing MESHFREE points in each time cycle, which are then used to trigger new droplets.