Activation energy and Coriolis force on Cu-TiO2/water hybrid nanofluid flow in an existence of nonlinear radiation

The current exploration reveals the novel circumstances of the activation energy on the two-dimensional, unsteady, rotating Cu-TiO2/water hybrid flow on a stretched moving surface. Significance of buoyancy force due to temperature difference, heat absorption and nonlinear thermal radiation are also invoked. Modified Arrhenius function is adopted to implement the activation energy. Compatible thermo-physical properties of hybrid nanofluid are accomplished. Appropriate dimensionless variables are proposed to modify the current boundary layer equations into the nondimensional form. The nondimensional coupled PDE's are fixed numerically by employing the explicit finite difference scheme. Since the numerical method is conditionally stable, the convergence and stability limitations were acquired. The significance of miscellaneous parameters on concentration, temperature and velocity profiles are determined and displayed through graphs. In addition, the deviations in engineering coefficients (local Nusselt number, skin friction and local Sherwood number) are demonstrated for distinct arising parameters. The outcomes discloses that the activation energy regulates the heat transfer rate. A significant effect on rate of heat and mass transfer is attained by manipulating radiation parameter. Theoretical results of the impact of Arrhenius activation energy in a chemically reactive system containing the species chemical reactions are essential in problems related to the mechanism of oil reservoir engineering and geothermal.

Automated summary

This study investigates the impact of activation energy on heat and mass transfer properties in a two-dimensional, unsteady, rotating Cu-TiO2/water hybrid flow on a stretched moving surface through numerical simulations. By modifying equations into nondimensional form and using an explicit finite difference scheme for numerical simulation, the study reveals the regulatory role of activation energy on heat transfer rate, and the significant influence of radiation parameter on heat and mass transfer rates.