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Physical importance of entropy generation in fluid flow (Williamson) with nonlinear radiative heat flux

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Abstract

The present analysis deals with two-dimensional magneto-Williamson liquid bounded by a stretching surface. Impacts of viscous dissipation, heat generation/absorption and nonlinear thermal radiation are also considered. Entropy generation minimization in flow of Williamson fluid is discussed. Convergent solutions of resulting problems are obtained. Nusselt number, skin friction coefficient, temperature and velocity are discussed. Velocity reduces for larger Williamson fluid parameter. Temperature enhances for larger radiation parameter and Biot number. Entropy generation and Bejan number are increased for larger Biot number, while both have opposite behavior for Brinkman number.

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Authors and Affiliations

  1. School of Mechanical and Manufacturing Engineering, National University of Sciences and Technology, Islamabad, Pakistan

    Niaz B. Khan

  2. Heriot Watt University, Edinburgh Campus, Edinburgh, EH14 4AS, UK

    M. Imran Khan

  3. School of Mathematics and Statistics, Beijing Institute of Technology, Beijing, 100081, China

    Waqar Azeem Khan

  4. Department of Physics, IHSE, Siksha ‘O’ Anusandhan Deemed to be University, Bhubaneswar, Odisha, 751003, India

    M. K. Nayak

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  1. Niaz B. Khan
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  2. M. Imran Khan
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Correspondence to M. Imran Khan.

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Khan, N.B., Khan, M.I., Khan, W.A. et al. Physical importance of entropy generation in fluid flow (Williamson) with nonlinear radiative heat flux. Indian J Phys 95, 717–724 (2021). https://doi.org/10.1007/s12648-020-01728-0

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  • DOI: https://doi.org/10.1007/s12648-020-01728-0

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