Simulation of High-Speed atomization down to the sheet breakup scale
I will explore various aspects of atomization, starting with the simulation and linear stability theory (both spatial and temporal) of two-phase mixing layers. I will show how Volume-of-Fluid methods coupled with octree Adaptive Mesh Refinement in particular, lead to fast massively parallel computations. I will continue with experiments recently conducted by Pallav Kant, Detlef Lohse and coworkers on an impulsively started shear flow mimicking cough. Finally I will discuss the Manifold Death method for controlling the perforation and breakup of very thin sheets in simulations, and show that Manifold Death leads to statistically converged simulations, including the probability distribution function of droplet sizes.
Contact Nathanaël Machicoane for more information or to schedule a discussion with the seminar speaker.