Stochastic Droplet-Fiber Collisions

We present a novel method to simulate fibers in flows transporting droplets. We discuss how to model the collisions of droplets and fibers. Since droplet-fiber collision is computationally expensive we use a new stochastic approach modeling the collision probability of droplets and fibers. From a continuous spatial distribution of the particle masses we can calculate the impact on a specific fiber at any arbitrary point. This gives an average mass and momentum of the droplets which is transferred to the fiber. We integrate our model in a fiber dynamics simulation tool (FIDYST) used to simulate industrial manufacturing processes.