Some Boundary Layer Flows of Non Newtonian Nanofluids over Stretching Surfaces

Abstract

This research focuses on the study of fluid dynamics, which plays a crucial role in various engineering fields, industries, and biological systems. The behavior of fluids in motion newlineis discussed, with a specific focus on the non-Newtonian fluids. Common examples of newlinenon-Newtonian fluids include condensed milk, toothpaste, latex paint, nail polish, blood newlineplasma, silicone, oils, etc. Various models, such as Williamson, micropolar, power law newlinefluid models, are considered for the mathematical analysis and understanding of the behavior of non-Newtonian fluids. newlineThe concept of the boundary layer was first introduced by Ludwig Prandtl in 1904, which newlineexplains the flow of fluids over solid surfaces, and is significant in understanding heat and newlinemass transfer rates in processing applications. The boundary layer theory helps simplify the complex Navier-Stokes equations and address the non-linear terms at higher Reynolds newlinenumbers that lead to high complexity. Thorough understanding of boundary layer flow newlineis crucial and holds potential for further development in the future. Such flows have newlinenumerous applications in industrial and manufacturing processes, including annealing and newlinethinning of copper wires and plastic films, for materials transported on conveyor belts and newlineso on. newlineNanofluids represent an exciting new frontier in technology owing to their brilliant newlinethermal properties and potential applications. This study involves detailed mathematical newlinerepresentations of the considered fluid flow aspects using Buongiorno/Tiwari and Das newlinenanofluid models, and employing numerical methods for solutions using MATLAB. newlineThis thesis also provides an exhaustive review of the current literature, with a primary newlineemphasis on recent research findings. Physical parameters such as magnetic field strength, newlineporous medium permeability, linear/non-linear thermal radiation, and chemical reactions newlineare investigated for their effects on the flow of non-Newtonian nanofluid over stretching newlinesurfaces. newline