Fully developed mixed convection flow in a vertical channel with electrokinetic effects: Exact solution
Multidiscipline Modeling in Materials and Structures
ISSN: 1573-6105
Article publication date: 26 July 2018
Issue publication date: 29 October 2018
Abstract
Purpose
The purpose of this paper is to investigate electrokinetic and mixed convection (pressure gradient and buoyancy) effects on reverse flow formation at the channel walls.
Design/methodology/approach
The electrical potential distribution was modelled using the Poisson–Boltzmann equation while the governing momentum and energy equations are modelled from the Navier–Stokes equations and solved exactly.
Findings
It is found that flow reversal at the walls is enhanced by electrokinetic parameter whereas increasing degree of asymmetric parameter up to symmetric heating eliminates reverse flow formation at the walls no matter the electric charge distribution.
Originality/value
The results of this paper indicate that degree of asymmetric heating, mixed convection parameter and electrokinetic parameter regulate fluid velocity, rate of heat transfer, skin friction and reverse flow formation at the walls.
Keywords
Citation
Jha, B.K. and Oni, M.O. (2018), "Fully developed mixed convection flow in a vertical channel with electrokinetic effects: Exact solution", Multidiscipline Modeling in Materials and Structures, Vol. 14 No. 5, pp. 1031-1041. https://doi.org/10.1108/MMMS-10-2017-0123
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited