Electroosmosis augmented MHD peristaltic transport of SWCNTs suspension in aqueous media

Abstract

This article analyzes the flow of single-walled carbon nanotubes (SWCNTs) suspended water-based ionic solution driven by combined effects of electroosmosis and peristalsis mechanisms. The analysis is performed in the presence of the transverse magnetic field, thermal radiation, mixed convection, and the slip boundary condition imposed on the channel walls. Poisson–Boltzmann ionic distribution is linearized by employing the Debye–Huckel approximation. The scaling analysis of the problem is rendered subject to the lubrication approach. The resulting nonlinear system of equations is executed to obtain approximate solutions using regular perturbation techniques and the graphical results are computed for various flow properties. Pumping and trapping phenomena are also discussed under the effects of pertinent parameters. Computed results show that a reduction in EDL thickness intensifies the fluid velocity as well as temperature. Improvement in thermal conductivity of base fluid is noticed with increasing SWCNTs volume fraction. It is further examined that axial velocity magnifies with Helmholtz–Smoluchowski velocity.