MHD hybrid-nanofluid (CNT - Fe3O4-H2O) flow through a squeezing/dilating
walls of the asymmetric channel
Abstract
The fundamental concern of the present study is to analyze the
magnetohydrodynamics (MHD) hybrid nanofluid (Carbon-nanotubes and
ferrous oxide-water)$ CNT-Fe_{3}O_{4}/H_{2}O$ flow through a
horizontal parallel channel having squeezing and dilating porous walls
along with thermal radiation. The porous walls of the channel cause the
parting motion. The fluid flow is laminar and time-dependent. The
channel is asymmetric and the temperature and porosity of the upper and
lower walls are different. The concept of hybrid nanofluid is exploited
with the combination of nanoparticles of $Fe_{3}O_{4}$ and
single and multi-wall carbon nanotubes. The set of partial differential
equations (PDEs) of this mathematical model, governed from momentum and
energy equations, are reduced to respective ordinary differential
equations (ODEs) by using the similarity transformation. To achieve the
solutions of governing ODEs, a very common numerical approach called,
Runge-Kutta method of order four along with shooting technique is
utilized. A computing software MATLAB is used to construct the graphs of
temperature and velocity profiles for different emerging parameters. The
main findings are summarized at the end of the manuscript.