Lattice Boltzmann simulation of water droplet impacting a hydrophobic plate with a cylindrical pore
Geng Wang, Linlin Fei, Kai Luo
Abstract
The dynamics of a water droplet impacting on a hydrophobic plate with a cylindrical pore is captured by a nonorthogonal multiple-relaxation-time lattice Boltzmann method. Three distinctive regimes of droplet penetration behaviors: hanging, total crossing, and continuous dripping are found. A phase diagram is constructed for the different regimes, with the phase boundaries determined by the balance among the droplet dynamic pressure, capillary pressure, and viscous drag.
Topics & Concepts
Lattice Boltzmann methodsDragMechanicsPenetration (warfare)Materials scienceCapillary actionPhysicsComposite materialEngineeringOperations researchLattice Boltzmann Simulation StudiesFluid Dynamics and Heat TransferFluid Dynamics Simulations and Interactions