Thermal analysis on mutual interaction of temperature stratification and solutal stratification in the presence of non-linear thermal radiations

Abstract

The mutual interaction of thermal stratification and solutal stratification in mixed convection flow regimes claims many thermal engineering standpoints in daily life and so holds the interest of researchers in the thermal science of fluid flows. Owning to such interest, the current attempt contains a comparative thermal case study on a non-Newtonian fluid flow field subject to inclined surfaces. The stagnation point temperature flow regime is manifested with non-linear radiations, magnetic field, and heat generation/absorptions effects. The physical problem is translated mathematically in terms of a non-linear coupled differential system. The solution is reported by using the shooting method for Jeffrey fluid flow. The surface quantities namely are Sherwood and Nusselt numbers are evaluated for various important physical domains namely radiative flow field, non-radiative flow field, stratified and non-stratified fields, magnetic and non-magnetic fields. We observed that the thermophysical characteristics of stagnation point flow of Jeffrey fluid are enriched in magnitude for the cylindrical surface. Further, the heat transfer normal to the cylindrical surface is higher in magnitude with temperature stratification in comparison with the flow regime without temperature stratification.

Keywords

• Thermal stratification
• Thermal radiations
• Solutal stratification
• Dual convection
• Non-Newtonian fluid
• Shooting method