Non-linear MHD convective flow of Carreau nanofluid over an exponentially stretching surface with activation energy and viscous dissipation

Abstract

Numerical approach for a non-linear mixed convective magnetohydrodynamic two-dimensional Carreau nanofluid through an exponentially permeable stretching surface with viscous dissipation and velocity slip under the influence of Arrhenius activation energy in chemical reaction is reported. The effects of thermophoresis and Brownian motion are considered. The governing nonlinear equations of this model are transmuted into ODE’s through similarity variables and solved them with a shooting method based on R-K 4th order. Responses of fluid velocity, transfer rates (heat and mass) versus pertinent parameters of the problem for suitable values are obtained and the computational calculations for friction coefficient, Nusselt number and Sherwood number for the both suction and injections regions are presented in plots and tables. It is found that fluid velocity is an increasing function of Weissenberg number. Momentum boundary layer thickness is depressed by magnetic field impact. Increasing trend in Carreau fluid temperature is noticed due to larger values of thermophoresis and Brownian motion effects. Concentration field is a decreasing function of Brownian motion but an increasing function of thermophoresis. Activation energy augments the concentration curves and lowered by Schmidt number. Comparison of the results is made with already published results and we got good agreement.

Exploring Entropy Minimization in Hybrid Nanofluid Flow Past an Exponentially Stretching Sheet with Significant Quadratic Radiation and Lorentz Forces: A Non-Fourier Heat Flux Analysis

“…It was their contention that the utilization of hybrid nanoparticles resulted in an enhancement in the heat transmission rate. Afterwards, a number of scholars [9][10][11][12][13][14][15][16][17][18] delved into the realm of exponentially stretching sheets, meticulously examining diverse HNF flows under varying parameters, encompassing the intricate phenomenon of heat generation.…”

Impact of Shape Factor on a Couple Stress Flow of a Ternary Hybrid Nanofluid over an Inclined Flat Plate when Non-Uniform Heat Source and Thermal Radiation are Significant: A Darcy-Forchheimer Model

“…It has been noted that when the Richardson number grows, the impact of nanoparticle dispersion on reducing skin friction becomes more pronounced. Following this, several research papers [11][12][13][14][15][16][17][18][19][20] delved into the flat plate as a geometric form, investigating a range of fluid dynamics scenarios with different parameters, encompassing thermal radiation.…”

Viscous dissipation and radiation absorption effects on unsteady MHD free convective fluid flow past an inclined porous plate with chemical reaction

“…Rajakumar et al 27 reported the impact of viscous dissipation on MHD flow over a fluctuating nonparallel porous plate in presence of chemical reaction along with radiation absorption. Srinivasa Babu et al 28 scrutinized numerically, the influence of viscous dissipation on nonlinear MHD mixed convective Carreau fluid over an exponentially stretching surface.…”