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Heat and mass transfer in electrically conducting hybrid nanofluid flow between two rotating parallel stretching surfaces: an entropy analysis

  • S. Uday Shree,
  • B. N. Hanumagowda,
  • Geetika Saini,
  • Kushdeep Singh,
  • Ankur Kulshreshta,
  • S. V. K. Varma,
  • R. J. Punith Gowda

摘要

The flexible and useful iron oxide \((Fe_{3} O_{4} )\) ( F e 3 O 4 ) and cobalt ferrite \((CoFe_{2} O_{4} )\) ( C o F e 2 O 4 ) nanoparticles suspension into a base fluid made of water (50%) and ethylene glycol (50%) have uses in multiple areas like magnetic refrigeration, electronic cooling, solar thermal collectors, oil recovery and oil extraction. In connection with this, the current study explores the entropy production rate along with heat and diffusion transport in an electrically conducting hybrid nanofluid that runs between two stretchable rotating parallel plates in a porous media. The impact of suction /injection, chemical reaction, radiation, joule heating, and heat source are incorporated into the flow model. The Runge Kutta-Fehlberg’s fourth fifth (RKF-45 technique) is employed to acquire the velocity, temperature, and concentration distribution results. Additionally, the entropy production rate is also derived. The behaviour of fluid distributions for different material parameters is visualized and analyzed through graphs and tables. Further, the shear stress and Nusselt number at the lower wall are also evaluated. This study is validated by prior research. It was observed that the entropy can be optimized by using radiation and magnetic parameters. A rise in value of radiation and heat source parameters increases the heat transmission. A rise in chemical reaction parameter improves the fluid concentration.