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      Entropy generation effect of a buoyancy force on hydromagnetic heat generating couple stress fluid through a porous medium with isothermal boundaries

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          Abstract

          This investigation addresses the influence of a buoyancy force on the flow of a couple stress hydromagnetic heat generating fluid across a porous channel with isothermal boundaries. The analytical formulations for the momentum and energy equations are derived to seek the solutions for the rate of fluid momentum, heat transfer and the rate of entropy generation with the use of a well known and efficient series solution of Adomian decomposition method (ADM). The findings are compared with earlier acquired findings for validation and hereby showed the speedy convergence of the series solution. The results showed the substantial influence of inward warmth inside the stream and buoyancy force on the motion and thermal energy of the flow system. Also, the activities of entropy generation generally occur maximally at the centreline of the flow stream with significant reduction with respect to buoyancy force and magnetic field strength.

          Abstract

          Applied mathematics; Computational mathematics; Mathematics; Mechanical engineering; Thermodynamics; Computational fluid dynamics; Computational heat transfer; Couple stress fluid; Porous medium; Entropy generation; Internal heat generation; Buoyancy force; Adomian decomposition method

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          Most cited references34

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          A reliable modification of Adomian decomposition method

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            A new modification of the Adomian decomposition method for linear and nonlinear operators

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              Buoyancy Effects on Thermal Boundary Layer Over a Vertical Plate With a Convective Surface Boundary Condition

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                Author and article information

                Contributors
                Journal
                Heliyon
                Heliyon
                Heliyon
                Elsevier
                2405-8440
                08 June 2020
                June 2020
                08 June 2020
                : 6
                : 6
                : e04156
                Affiliations
                [a ]Department of Mathematics, Tai Solarin University of Education, Ijagun, Ogun State, Nigeria
                [b ]Department of Mathematics, National Open University of Nigeria, Jabi, Abuja, Nigeria
                [c ]Department of Mathematics, University of Nigeria of Lagos, Akoka, Lagos State, Nigeria
                Author notes
                [* ]Corresponding author. anthonyahssan72@ 123456yahoo.co.uk
                Article
                S2405-8440(20)31000-8 e04156
                10.1016/j.heliyon.2020.e04156
                7287259
                8880c06c-36d3-473f-b274-535651263a2a
                © 2020 Published by Elsevier Ltd.

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                : 31 March 2020
                : 8 April 2020
                : 3 June 2020
                Categories
                Article

                applied mathematics,computational mathematics,mathematics,mechanical engineering,thermodynamics,computational fluid dynamics,computational heat transfer,couple stress fluid,porous medium,entropy generation,internal heat generation,buoyancy force,adomian decomposition method

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