Entropy generation in nanofluid flow of Walters-B fluid with homogeneous-heterogeneous reactions |
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Authors: | Sumaira Qayyum Tasawar Hayat Sumaira Jabeen Ahmed Alsaedi |
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Institution: | 1. Department of Mathematics, Quaid-I-Azam University, Islamabad, Pakistan;2. Nonlinear Analysis and Applied Mathematics (NAAM) Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia |
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Abstract: | 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. |
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Keywords: | entropy generation heat generation/absorption homogeneous-heterogeneous reactions MHD thermal radiation viscous dissipation Walters-B nanofluid |
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