Numerical Investigation of Thermal and Mass Transfer Aspects in MHD Driven Sisko Nanofluid Flow Over A Porous Stretching Sheet With Variable Fluid Properties

Abstract

In recent years, the exploration of nanofluids coupled with magnetohydrodynamics effects has garnered significant attention due to their potential applications in various engineering fields, particularly, in heat transfer enhancement and mass transfer phenomena. This thesis presents a comprehensive numerical investigation of the thermal and mass transfer characteristics of Sisko nanofluid flow over a porous stretching sheet under the influence of a magnetic field and variable fluid properties. The governing equations of the flow, which include the conservation of mass, momentum, energy, and species concentration are formulated and subsequently solved using MATLAB, 4 stage Lobatto IIIa formula. The Sisko fluid model is utilized to represents both Newtonian and non-Newtonian behavior of the nanofluid, considering the influence of nanoparticle volume, temperature and concentration dependent fluid properties. The presence of a magnetic field is incorporated through the magnetohydrodynamic equations accounting for Lorentz force effects. The parameters such as the Sisko fluid parameter, magnetic parameter, porosity parameter, thermal radiation, Prandtl number, Lewis number, and nanoparticle volume fraction are investigated in detail. Special attention is given to understanding the effects of these parameters on velocity profiles, temperature distribution, and concentration fields within the boundary layer. Furthermore, the study explores the role of variable fluid properties, including thermal conductivity, viscosity, and specific heat, on the heat transfer process. The results highlight the significance of these properties in influencing the overall heat transfer rate and temperature distribution within the nanofluid flow. The findings of this investigation provide valuable insights into the thermal and mass transfer aspects of MHD-driven Sisko nanofluid flow over a porous stretching sheet, offering useful information for optimizing heat exchanger design and other engineering applications where enhanced heat and...