Title: Slip flow and nonlinear radiative heat transfer of suspended nanoparticles due to a rotating disk in the presence of convective boundary condition

Authors: B.C. Prasannakumara; B.J. Gireesha; M.R. Krishnamurthy; Rama Subba Reddy Gorla

Addresses: Department of Mathematics, Government First Grade College, Koppa, Chikkamagaluru-577126, Karnataka, India ' Department of Studies and Research in Mathematics, Kuvempu University, Shankaraghatta-577451, Shimoga, Karnataka, India ' Department of Mathematics, JNN College of Engineering, Shimoga-577401, Karnataka, India ' Department of Mechanical and Civil Engineering, Purdue University Northwest, Westville, Indiana-46391, USA

Abstract: The slip flow and nonlinear radiative heat transfer of suspended nanoparticles due to a rotating disk is analysed in the present work. Two types of nanoparticles namely copper and aluminium oxide and water is treated as base fluid. Suitable similarity transformations are used to reduce the nonlinear partial differential equations to ordinary differential equations. Flow and heat transfer characteristics are computed by numerical technique Runge-Kutta-Fehlberg-fourth and fifth order method. Further, the skin friction coefficient and Nusselt number are presented and examined for pertinent parameters. It is noticed that the higher velocity slip parameter decreases the radial and azimuthal velocities. Also, the rate of heat transfer enhances when the nanoparticle volume fraction increases.

Keywords: velocity slip; convective condition; nanoparticles; rotating disk; nonlinear radiation.

DOI: 10.1504/IJNP.2017.089212

International Journal of Nanoparticles, 2017 Vol.9 No.3, pp.180 - 200

Received: 10 Apr 2017
Accepted: 16 Jun 2017
Published online: 09 Jan 2018 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article