Abstract

ALI, Usman; ALQAHTANI, Ali S.; REHMAN, Khalil Ur  and  MALIK, M.Y.. On Cattaneo-Christov heat flux analysis with magneto-hydrodynamic and heat generation effects in a Carreau nano-fluid over a stretching sheet. Rev. mex. fis. [online]. 2019, vol.65, n.5, pp.479-488.  Epub Apr 23, 2020. ISSN 0035-001X.  https://doi.org/10.31349/revmexfis.65.479.

This pagination specifies the characteristics of Cattaneo-Christov heat diffusion model for the stagnation point flow of a Carreau nano-fluid. The momentum equation is manifested with magneto-hydrodynamic effect and the generalised Fourier’s law and Fick’s law are considered to manipulate the heat and mass flux with heat generation and chemical reaction. The fluid flow having infinite shear rate viscosity is caused by the stretched sheet. The admissible transformations are invoked to alter the flow narrating coupled partial differential system into the coupled ordinary differential system. Later on, these equations are sorted out numerically with the aid of Runge-Kutta Fehlberg method supported with shooting scheme. The graphs are plotted that portrays the impact of fluid velocity and temperature towards various engineering parameters which reveals that the fluid temperature increases when enlarging heat generation parameter. The validations for the numerical values of skin friction coefficient are delineated with the existing literature. Also, the numerical findings for the local Nusselt number are offered.

Keywords : 07.85.-m; 75.30.Ds; 28.90.+t.; Carreau nano-fluid; stagnation point flow; chemical reaction; Cattaneo-Christov heat flux model; heat generation.

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