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DOI: 10.1615/HeatTransRes.2019025546
pages 1495-1512

CHEMICALLY REACTIVE HYDROMAGNETIC FLOW OVER A STRETCHABLE OSCILLATORY ROTATING DISK WITH THERMAL RADIATION AND HEAT SOURCE/SINK: A NUMERICAL STUDY

Amar Rauf
Department of Mathematics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan; Department of Mathematics, COMSATS University Islamabad, Sahiwal Campus 57000, Pakistan
Zaheer Abbas
Department of Mathematics, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
Sabir Ali Shehzad
Department of Mathematics, COMSATS University Islamabad, Sahiwal 57000, Pakistan

ABSTRACT

A numerical exploration of unsteady oscillatory three-dimensional magnetohydrodynamic (MHD) flow of a viscous liquid over rotating oscillatory disk is presented. The disk stretches in the radial direction with time-based sinusoidal oscillations. Adaptation of thermal radiation with the heat source/sink is made in the energy equation while the mass equation incorporates the impacts of a chemical reaction parameter. The normalized system of partial differential equations is obtained by implementing similarity transformations. Such system of equations is solved then by the finite difference scheme and successive overrelaxation (SOR) method. The analysis is presented to study the effects of dimensionless parameters appearing in the governing equations. The results are presented in the forms of graphs and tables. It is scrutinized that the increase in the magnetic parameter falls off the flow amplitude. The fluid temperature increased with the passage of time for enhancement in radiation parameter. The increase in the Sherwood number is observed for enhanced unsteady parameter and Schmidt number.

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