Abstract
The current study is an attempt to analytically characterize the second law analysis and mixed convective rheology of the (Al2O3–Ag/H2O) hybrid nanofluid flow influenced by magnetic induction effects towards a stretching sheet. Viscous dissipation and internal heat generation effects are encountered in the analysis as well. The mathematical model of partial differential equations is fabricated by employing boundary-layer approximation. The transformed system of nonlinear ordinary differential equations is solved using the homotopy analysis method. The entropy generation number is formulated in terms of fluid friction, heat transfer and Joule heating. The effects of dimensionless parameters on flow variables and entropy generation number are examined using graphs and tables. Further, the convergence of HAM solutions is examined in terms of defined physical quantities up to 20th iterations, and confirmed. It is observed that large λ1 upgrades velocity, entropy generation and heat transfer rate, and drops the temperature. High values of δ enlarge velocity and temperature while reducing heat transport and entropy generation number. Viscous dissipation strongly influences an increase in flow and heat transfer rate caused by a no-slip condition on the sheet.
Highlights
Introduction iationsThe major factors subject to the efficiency of the heat transfer processes include structure, control, and analysis of thermal systems
The present work is an analytical attempt for the analysis of heat transfer and entropy generation in the dynamics of hybrid nanofluid, influenced by induced magnetic field under the influence of viscous dissipation, mixed convection and heat generation
Assisting flow grows the flow and heat transfer rate; The heat generation parameter indicates growth of the velocity boundary-layer thickness for internal heat generation, while it reduces for heat absorption
Summary
The major factors subject to the efficiency of the heat transfer processes include structure, control, and analysis of thermal systems. Fluids dominantly grow the flow and rate of heat transfer corresponding to the applications in engineering and scientific systems including efficient heat surface area, microscale cooling devices, vibration of heated surfaces, and microelectronic devices etc. In order to get more efficient results, there have been a lot of attempts by researchers to synthesize these fluids for an amplified heat transfer rate, using the composition of several fluids as well as the dispersion of metallic particles of different sizes and shapes etc. The efficient thermal characteristics of nanofluids, colloidal suspensions of nanoparticles in base fluids primarily prepared by Choi [1], were guaranteed due to their substantially modified thermal conductivities with insignificant abrasion.
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