Impact of Varying Thermal Conductivity and Viscosity on Natural Convection Flow Along a Vertical Flat Plate with Heat Conduction and Viscous Dissipation

This study examines how natural convection flow down a vertical flat plate is affected by varying viscosity and thermal conductivity, taking into account the effects of heat conduction and viscous dissipation. The fluid flow and heat transfer are described mathematically, accounting for temperature-dependent changes in thermal conductivity and viscosity. Using suitable boundary conditions, the governing equations—such as the momentum, energy, and continuity equations—are numerically solved. The impact of these changes on temperature distributions, velocity profiles, Nusselt number, and total heat transfer efficiency is the main focus of the analysis. The findings show that changes in thermal conductivity and viscosity have a major effect on the establishment of thermal boundary layers, heat transfer efficiency, and flow characteristics. The research was conducted to improve the comprehension and prediction of heat transfer processes in a variety of engineering applications by examining the effect of varying thermal conductivity and viscosity on natural convection flow along a vertical flat plate with heat conduction and viscous dissipation. Natural convection is essential in situations where heat transmission occurs without external mechanical aid, including cooling systems, electronic gadgets, and building ventilation. Researchers seek to create more precise models for predicting fluid flow and heat transfer behaviour under varying settings by examining these changes.