Title: Thermal radiation and diffusion effects on natural convection flow of couple stress fluid in a vertical channel

Authors: Kolla Kaladhar; Sandle S. Motsa; D. Srinivasacharya

Addresses: Department of Mathematics, National Institute of Technology Puducherry, Karaikal, India ' School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Private Bag X01, Scottsville, 3209, Pietermaritzburg, South Africa ' Department of Mathematics, National Institute of Technology, Warangal-506 004, India

Abstract: The thermal radiation and diffusion effects on natural convection flow of couple stress fluid through a channel are investigated. The governing nonlinear partial differential equations are transformed into a system of ordinary differential equations using similarity transformations. The resulting equations are then solved using the spectral quasi-linearisation method (SQLM). The results, which are discussed with the aid of the dimensionless parameters entering the problem, are seen to depend sensitively on the parameters.

Keywords: natural convection; couple stress fluids; radiation effect; spectral quasi-linearisation method; SQLM; Soret effect; thermal radiation; diffusion effects; vertical channels; nonlinear PDEs; partial differential equations.

DOI: 10.1504/PCFD.2015.072775

Progress in Computational Fluid Dynamics, An International Journal, 2015 Vol.15 No.6, pp.388 - 395

Received: 08 May 2021
Accepted: 12 May 2021

Published online: 27 Oct 2015 *

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