Theoretical Study of Convective Heat Transfer in Ternary ‎Nanofluid Flowing past a Stretching Sheet

A new theoretical tri-hybrid nanofluid model for enhancing the heat transfer is presented in this article. This model explains the method to obtain a better heat conductor than the hybrid nanofluid. The tri-hybrid nanofluid is formed by suspending three types of nanoparticles with different physical and chemical bonds into a base fluid. In this study, the nanoparticles TiO۲, Al۲O۳ and SiO۲ are suspended into water thus forming the combination TiO۲-SiO۲-Al۲O۳-H۲O. This combination helps in decomposing harmful substances, environmental purification and other appliances that requires cooling. The properties of tri-hybrid nanofluid such as Density, Viscosity, Thermal Conductivity, Electrical Conductivity and Specific Heat capacitance are defined mathematically in this article. The system of equations that governs the flow and temperature of the fluid are converted to ordinary differential equations and are solved using RKF-۴۵ method. The results are discussed through graphs and it is observed that the tri-hybrid nanofluid has a better thermal conductivity than the hybrid nanofluid.

کلیدواژه ها:

heat transfer ، Tri Hybrid Nanofluid ، stretching Sheet ، Magnetic field