Numerical analysis of magnetic hybrid Nano-fluid natural convective flow in an adjusted porous trapezoidal enclosure

This research paper performs a numerical investigation on Nano-fluid's laminar flow and the effect of their thermo-physical characteristics on convective heat transfer. Thus, Ag-Al2O3/H2O hybrid Nano-fluid was chosen based on its excellent properties and a magneto-hydrodynamic flow analysis inside of a modified trapezoidal porous enclosure has been conducted. Using the Darcy-Forchheimer-Brinkmann model and the finite element method to resolve the non-dimension equations, the exploitation was carried out by altering Rayleigh, Darcy, Hartmann, and the volume fraction of the hybrid Nano-fluid. The outcomes revealed intriguing results, supporting the augmentation of Ra, Da, and phi to improve the average Nusselt and boost thermal transfer, and recommending that Ha should be decremented. Furthermore, the findings of this study evaluated the geometrical features of the trapezoid and indicated that decreasing the aspect ratio of the enclosure, the undulation number of the wall, and raising the inclination angle of the side walls are critical for prolonged thermal efficiency and heat transmission.

Automated summary

This research paper numerically investigates the laminar flow of nano-fluid and the impact of its thermo-physical characteristics on convective heat transfer. It finds that increasing the Rayleigh number, Darcy number, and volume fraction of the hybrid nano-fluid can improve thermal transfer, while decreasing the Hartmann number is recommended. Additionally, the study evaluates the geometric features of the enclosure and suggests that decreasing the aspect ratio, reducing the undulation number of the wall, and increasing the inclination angle of the side walls are crucial for enhancing thermal efficiency and heat transmission.