Mesoscopic model framework for liquid slip in a confined parallel-plate flow channel
Li Zi, Jiawei Li, Guanxi Yan, S. A. Galindo‐Torres, Alexander Scheuermann, Ling Li
Abstract
We investigated the liquid slip in a planar confined flow channel by proposing an exponentially decaying interaction force between fluid particles and two flat walls in the mesoscopic lattice Boltzmann model framework. In this way, we can explicitly link density profile, velocity profile, and apparent slip length with the mesoscale interaction parameters (force strength and decay length), and formulate the permeability-enhancement ratio as a function of two dimensionless numbers that indicate the role of interaction strength and interaction distance (relative to gap size of flow channel) in the slip-flow system.
Topics & Concepts
Mesoscopic physicsDimensionless quantitySlip (aerodynamics)Slip ratioMechanicsLattice Boltzmann methodsPlanarPhysicsCondensed matter physicsShear stressComputer scienceThermodynamicsComputer graphics (images)Lattice Boltzmann Simulation StudiesMicrofluidic and Bio-sensing TechnologiesAerosol Filtration and Electrostatic Precipitation