Shahnaz Bathul | Searcharxiv

arXiv2016

Electrical Potential, Mass Transport and Velocity Distribution of Electro-osmotic Flow in a Nanochannel by Incorporating the Variation of Dielectric Constant of Aqueous Electrolyte Solution

We consider a coupled system of Navier Stokes, Maxwell Stefan and Poisson Boltzmann equations by incorporating the variation of dielectric constant, which governs the electro osmotic flow in nano channel, describing the evolution of the velocity, concentration and potential fields of dissolved constituents in an aqueous electrolyte solution. We apply the finite difference technique to solve one and two dimensional systems of these equations. The solutions give an extremely accurate prediction of the dielectric constant for a variety of salts and a wide range of concentrations.

physics.flu-dyn↗

arXiv2016

A New Model For Incorporating the Variations of the Dielectric Permittivity of the Medium: Part (1)Potential Distribution of an Electrical Double Layer in Rectangular Nano channel by Applying Finite Element Method Technique

The effect of the dielectric permittivity of the electrolytic medium in the Electrical Double Layer (EDL) in Nanochannel is an important factor that requires a correction, before the application of the model in various chemical and biomedical examinations. However very few efforts are put forth to accommodate this into the mathematics of the EDL Models developed hitherto, even though it was realized by a host of authors for the past half a century or even more. Most of the Nanoc hannel made lab-on-chips in a rectangular cross section require suitable impregnation of this. The effect of the EDL in a nanochannel isimportant in various chemical and biomedical examinations. Most of the nanochannelmadelab on chips in a rectangular cross section. The EDL insuch a nanochannel is governed by two dimensional Gouy Chapman (GC)equation.

cond-mat.soft↗