Flow of carbon nanotubes suspended nanofluid in stretchable non-parallel walls

Abstract

Analysis of the carbon nanotubes suspended nanofluids in a channel with non-parallel stretchable walls is presented. Water is taken as the base fluid for the analysis. The governing partial differential equations governing the flow are transformed to a set of nonlinear ordinary differential equations. Solution of the problem is obtained using a numerical scheme as well as an analytical procedure called the differential transform method. Two types of CNTs called the single-walled carbon nanotubes and multi-walled carbon nanotubes are considered for the analysis. To examine the influence of involved parameters on velocity and temperature profiles, graphical analysis is carried out coupled with comprehensive discussions. The expressions for skin friction coefficient and the Nusselt number are formulated, and variations in these two for different values of parameters are presented graphically. Results obtained in this study are compared with some of the already existing results in the literature and found to be in exceptional agreement.