Influence of Thermophoresis and Brownian Motion of Nanoparticles on Radiative Chemically-Reacting MHD Hiemenz Flow over a Nonlinear Stretching Sheet with Heat Generation

In this study, a radiative MHD stagnation point flow over a nonlinear stretching sheet incorporating thermophor-esis and Brownian motion is considered. Using a similarity method to reshape the underlying Partial differential equations into a set of ordinary differential equations (ODEs), the implications of heat generation, and chemical reaction on the flow field are described in detail. Moreover a Homotopy analysis method (HAM) is used to inter-pret the related mechanisms. It is found that an increase in the magnetic and velocity exponent parameters can damp the fluid velocity, while thermophoresis and Brownian motion promote specific thermal effects. The results also demonstrate that as the Brownian motion parameter is increased, the concentration values become smaller.

Automated summary

This study investigates a radiative MHD stagnation point flow over a nonlinear stretching sheet with thermophoresis and Brownian motion. By using a similarity method, the governing partial differential equations are transformed into a set of ordinary differential equations (ODEs), and the effects of heat generation and chemical reaction on the flow field are analyzed. The Homotopy analysis method (HAM) is employed to explain the related mechanisms. The results show that an increase in the magnetic and velocity exponent parameters leads to a decrease in fluid velocity, while thermophoresis and Brownian motion enhance specific thermal effects. Additionally, as the Brownian motion parameter increases, the concentration values decrease.