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

• Published in: Fluid dynamics & materials processing Vol. 19; no. 4; pp. 855 - 868
• Main Authors: Mohammed Ibrahim, S., Vijaya Kumar, P., Lorenzini, G.
• Format: Journal Article
• Language: English
• Published: Duluth Tech Science Press 2023
• Subjects: Brownian motion; Chemical reactions; Heat conductivity; Heat generation; Heat transfer; Homotopy theory; Investigations; Magnetic fields; Magnetohydrodynamics; Nanoparticles; Ordinary differential equations; Parameters; Partial differential equations; Radiation; Stagnation point; Stretching; Temperature; Temperature effects; Thermophoresis; Tumors; Velocity
• ISSN: 1555-2578; 1555-256X; 1555-2578
• DOI: 10.32604/fdmp.2022.019796

In this study, a radiative MHD stagnation point flow over a nonlinear stretching sheet incorporating thermophoresis 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 interpret 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.