Transportation of SWCNT and MWCNT-based nanofluid through an exponentially stretching Riga plate in the presence of shear heating

Abstract

Nanofluids accomplish better results in heat transfer practices due to their exceptional thermal characteristics than traditional heat transfer fluids. This study reports the thermophysical behavior of carbon nanotube-based nanofluid flow through an exponentially stretched Riga plate, along with the contribution of variable dynamic viscosity, velocity slip, and viscous dissipation impacts. Nanofluid consists of single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) in aqueous solution. Boundary layer flow is intended to be steady, laminar, viscous-incompressible, and two-dimensional. Governing system of partial differential equations is elucidated with pertinent similarity transformations into dimensionless form. Simplified mathematical model is numerically operated through the spectral relaxation method. Significance of sundry parameters over momentum and heat profiles are delineated via graphs. Also, inconsistencies in point-specific skin drag coefficient and Nusselt heat transfer index are conferred through acquired numerical data.