https://doi.org/10.1140/epjp/s13360-024-05448-w
Regular Article
Entropy optimized flow of couple stress nanomaterial subject to homogeneous-heterogeneous chemical reactions
1
Department of Mathematics, Quaid-I-Azam University, 45320, Islamabad, Pakistan
2
Pakistan Academy of Science, G-5/2, Islamabad, Pakistan
3
Nonlinear Analysis and Applied Mathematics (NAAM) Research Group, Faculty of Science, King Abdulaziz University, P. O. Box 80207, 21589, Jeddah, Saudi Arabia
Received:
3
February
2024
Accepted:
6
July
2024
Published online:
20
July
2024
Nonlinear mixed convective flow of couple stress nanoliquid is analyzed. Slip condition and entropy generation are under consideration. Thermal relation comprises heat source, radiation, magnetohydrodynamic and viscous dissipation. Features of nanoliquid are added by employing Buongiorno model. Isothermal cubic autocatalysis chemical reactions are considered. Nondimensional ordinary differential expressions are developed through appropriate transformations. Nonlinear dimensionless ordinary systems are tackled through ND-Solve method. Analyses for entropy rate, temperature, velocity and concentration against emerging parameters are examined. Numerical results for heat transfer rate and skin friction are examined. Enhanced entropy rate and temperature are noticed through magnetic variable whereas reverse impact detected for velocity. Similar behaviors for velocity and drag force coefficient are witnessed through couple stress liquid parameter. Larger radiation variable corresponds to intensify the Nusselt number and temperature. An opposite trend of thermal distribution is noticed for Prandtl and Eckert numbers. Entropy rate is optimized versus higher Brinkman number. Larger homogeneous reaction variable leads to decrease the concentration distribution.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
