IMPACT OF SUCTION/INJECTION AND HEAT TRANSFER ON UNSTEADY MHD FLOW OVER A STRETCHABLE ROTATING DISK

  • K. V. Prasad Vijayanagara Sri Krishnadevaraya University Jnana Sagara Campus,Vinayaka Nagar Cantonment,Ballari: 583105
  • Hanumesh Vaidya Vijayanagara Sri Krishnadevaraya University
  • O D Makinde Faculty of Military Science, Stellenbosch University, Private Bag X2, Saldanha 7395, South Africa
  • Kuppalapalle Vajravelu Department of Mathematics, University of Central Florida, Orlando, FL 32816, USA
  • V Ramajini Vijayanagara Sri Krishnadevaraya University Jnana Sagara Campus,Vinayaka Nagar Cantonment,Ballari: 583105
Keywords: Unsteady flow, Variable fluid proper ties, Rotating disk, Mass suction/ injection, OHAM

Abstract

In this article, the unsteady magnetohydrodynamic two-dimensional boundary layer flow and heat transfer over a stretchable rotating disk with mass suction/injection is investigated. Temperature-dependent physical properties and convective boundary conditions are taken into account. The governing coupled nonlinear partial differential equations are transformed into a system of ordinary differential equations by adopting the well-known similarity transformations. Further, the solutions are obtained through the semi-analytical method called an Optimal Homotopy Analysis Method (OHAM). The obtained results are discussed graphically to predict the features of the involved key parameters which are monitoring the flow model. The skin friction coefficient and Nusselt number are also examined. The validation of the present work is verified with the earlier published results and is found to be in excellent agreement. It is noticed that an increase in the viscosity parameter leads to decay in momentum boundary layer thickness, and the inverse trend is observed in the case of the temperature profile.

Author Biography

K. V. Prasad, Vijayanagara Sri Krishnadevaraya University Jnana Sagara Campus,Vinayaka Nagar Cantonment,Ballari: 583105

Professor

Department of Mathematics

Vijayanagara Sri Krishnadevaraya University Jnana Sagara Campus,Vinayaka Nagar Cantonment,Ballari: 583105

Published
2020-02-26
Section
Heat and Mass Transfer