Stagnation-point flow and heat transfer over an exponentially stretching/shrinking cylinder

• Main Authors: Merkin, J. H., Najib, N., Bachok, N., Ishak, A., Pop, I.
• Format: Article
• Language: English
• Published: Elsevier 2017
• Online Access: http://psasir.upm.edu.my/id/eprint/63280/1/Stagnation-point%20flow%20and%20heat%20transfer%20over%20an%20exponentially%20stretching%20shrinking%20cylinder.pdf; http://psasir.upm.edu.my/id/eprint/63280/
• Institution: Universiti Putra Malaysia

The stagnation-point boundary-layer flow and heat transfer over an exponentially stretching/shrinking cylinder is studied. The governing partial differential equations in cylindrical form are first transformed into ordinary differential equations which are then solved numerically using a shooting method. Results for the skin friction coefficient, local Nusselt number, velocity and temperature profiles are presented and discussed in detail. The effects of the stretching/shrinking parameter ɛ and the curvature parameter γ on the fluid flow and heat transfer characteristics are also examined. It is found that the solutions for a shrinking cylinder are non-unique and that the surface shear stress and the heat transfer rate at the surface increase as the curvature parameter increases.