Droplet impacting a superhydrophobic mesh array: Effect of liquid properties
Geng Wang, Jingqi Gao, Kai Luo
Abstract
For numerous applications in microfluidic engineering, material science, and drug production, droplets of desired size and distribution are generated through liquid impingement on a perforated substrate. The dynamic process of droplet impact, spread, retraction, penetration, jet formation, and fragmentation into satellite droplets is simulated in a droplet impacting a mesh array configuration using an advanced lattice-Boltzmann method. The Weber number and Ohnesorge number are found to significantly influence the dynamics and outcomes, which can be explained by a qualitative and quantitative analysis based on the force and energy balance.
Topics & Concepts
Weber numberLattice Boltzmann methodsMicrofluidicsPenetration (warfare)Materials scienceMechanicsNanotechnologyReynolds numberPhysicsEngineeringOperations researchTurbulenceFluid Dynamics and Heat TransferLattice Boltzmann Simulation StudiesSurface Modification and Superhydrophobicity