Flow Over a Thin Needle Moving in a Casson Fluid

Abstract

This study examines the boundary layer flow across a thin, horizontal needle moving in a Casson fluid. The underlying equations are initially converted into a set of ordinary differential equations using similarity transformations, and thereafter successive linearization is applied. The Chebyshev collocation technique is applied to find the solution of the linearized equations. The temperature and velocity profiles, together with the skin friction coefficient and the Nusselt number, are illustrated graphically for different values of the needle size and Casson fluid parameter.