Research Information System
INTERNATIONAL JOURNAL OF COMPUTATIONAL MATERIALS SCIENCE AND ENGINEERING, vol.15, no.02, 2026 (ESCI, Scopus)
The project focuses on simulating natural convection in a tilted quarter-elliptical chamber filled with Al2O3-Cu/Water hybrid Nanofluid, influenced by a magnetic field (MF) at various angles. The chamber's elliptical shape is modelled with a constant height-to-length ratio of 2. The chamber's curved wall is cold, while one smooth wall is adiabatic, and the larger wall undergoes three types of heating. The Hartmann number (Ha), MF angle (lambda), chamber wall heating type, inclination angle (Gamma), and Rayleigh number (Ra) are studied. Results indicate that increasing Ra leads to enhanced convection and a higher average Nusselt number. At Ra = 10(4), heat transmission is primarily through conduction, resulting in the lowest flow power. The presence of a MF slows down heat transportation, especially at Ra = 10(4). The MF's impact is most significant when applied at a 90 degrees angle. Constant temperature chamber wall heating yields 75% and 85% higher average Nusselt values compared to sinusoidal and linear heating, respectively. The worst scenario occurs at Gamma = -90 degrees, where the computed Nusselt values and current power are lowest, highlighting the MF's influence. According to the study, when thermal boundary circumstances and MF angles are just right, the Al2O3-Cu/water hybrid nanofluid greatly improves the transfer of natural convection heat in a tilted cavity. This suggests that thermal management in cooling structures, electronics, and energy-efficient buildings may be improved.