A fully coupled hybrid lattice Boltzmann and finite difference method-based study of transient electrokinetic flows.

ABSTRACT: Transient electrokinetic (EK) flows involve the transport of conductivity gradients developed as a result of mixing of ionic species in the fluid, which in turn is affected by the electric field applied across the channel. The presence of three different coupled equations with corresponding different time scales makes it difficult to model the problem using the lattice Boltzmann method (LBM). The present work aims to develop a hybrid LBM and finite difference method (FDM)-based model which can be used to study the electro-osmotic flows (EOFs) and the onset of EK instabilities using an Ohmic model, where fluid and conductivity transport are solved using LBM and the electric field is solved using FDM. The model developed will be used to simulate three different problems: (i) EOF with varying

SUBMITTER: Basu HS 

PROVIDER: S-EPMC7655760 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature