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Entropy generation in nanofluid flow of Walters‐B fluid with homogeneous‐heterogeneous reactions
Author(s) -
Qayyum Sumaira,
Hayat Tasawar,
Jabeen Sumaira,
Alsaedi Ahmed
Publication year - 2020
Publication title -
mathematical methods in the applied sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.719
H-Index - 65
eISSN - 1099-1476
pISSN - 0170-4214
DOI - 10.1002/mma.5997
Subject(s) - nanofluid , bejan number , weissenberg number , homotopy analysis method , mathematics , brinkman number , magnetohydrodynamics , entropy (arrow of time) , heat generation , mechanics , flow (mathematics) , thermodynamics , heat transfer , nusselt number , physics , homotopy , geometry , magnetic field , reynolds number , turbulence , quantum mechanics , pure mathematics
Research on optimization of entropy generation in nanofluid flow gained much interest. In this study, the Walter's‐B nanofluid flow is considered to analyze the irreversibility in cubic autocatalysis. Fluid motion is considered in presence of viscous dissipation, magnetohydrodynamics (MHD), radiation, and heat generation absorption. Homotopy analysis method (HAM) is employed to solve nonlinear ordinary differential system. Results show that fluid flow reduces for larger Weissenberg and Hartman numbers. Temperature gradually enhances for larger Weissenberg number and radiation parameter. For higher estimation of thermophoresis parameter, the temperature and concentration are enhanced. Opposite impact of Hartman and Weissenberg numbers is noticed for entropy generation and Bejan number. Disorderedness and Bejan number are reduced near the sheet, while the opposite trend is seen away from the sheet.