Influence of Thermal Wall and Velocity Slips on Non-Darcy MHD Boundary Layer Flow of a Nanofluid over a Non-linear Stretching Sheet

• Published in: Journal of physics. Conference series 2024-12, Vol.2844 (1), p.12018
• Main Authors: Bansal, Sham, Kumar, Ashok, Pal, Jai, Goyal, Ishu, Singh Negi, Anup
• Format: Article
• Language: English
• Subjects: Boundary layer flow; Coefficient of friction; Heat transfer; Implicit methods; Magnetic permeability; Magnetic properties; Mass transfer; MHD; Nanofluids; Ordinary differential equations; Parameters; Partial differential equations; Permeability; Porous media; Porous medium; Skin friction; Slip; Stretching; Thermal boundary layer; Thermal transformations; Thermophoresis; Velocity; Velocity distribution
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/2844/1/012018

This study investigates the characteristics of magnetohydrodynamic nanofluid flowing via a non-linearly stretched surface within a porous media along with thermal and velocity slips. The similarity transformation is implemented to derive non-dimensional ordinary differential equations from partial differential equations. The finite difference Keller box implicit method yields the numerical solutions. Notably, our findings reveal the intricate influence of several factors, such as velocity slip factor, permeability parameter, thermophoresis parameter, thermal slip factor, Brownian parameter, magnetic parameter and stretching factor on temperature, concentration and velocity, also unveiling nuanced insights into the enhancement of mass and heat transfer attributes. The finding shows that the concentration and temperature of the nanofluid are enhanced and reduced respectively on increasing the thermal slip factor. Further, both mass and heat transfer rates decrease with increasing thermal slip, while the influence of skin friction coefficient is negligible. Further, Both concentration as well as temperature increase on enhancing velocity slip parameter, but opposite behaviour has been observed for the velocity profile. Further, for the higher value of velocity slip, the skin friction coefficient and the rate of heat transfer are increased. While, the mass transfer rate decreases. Furthermore, As the permeability increases, temperature and velocity profiles both indicate an upward trend, which is an acceptable result because more permeability propels more flow and low permeability induces weak flow in the system. The achieved results are depicted graphically.