Params
Particle Group

The particle group to calculate the properties for.
Particles

The particle type of the Particle Group to use.
Passive
Vorticity
Liquid
Diffuse
Fluid Dynamics (Boundary)

Link a fluid dynamics node in order to get the domain boundary being taken into account for any simulation particles.
Duration

Takes a duration node in order to control when of the weak spring operation is evaluated.
Iterations
Particle Spacing
Spring stiffness

The spring stiffness. Be careful with this. The lower the time step (or rather the more substeps) the higher you can set the stiffness without it getting unstable.
Resampling erzwingen

Follows
Mimic Boundary Particles

Follows