Akademik Veri Yönetim Sistemi
Nanotechnology Reviews, cilt.15, sa.1, 2026 (SCI-Expanded, Scopus)
This investigation examines the magnetohydrodynamic flow behaviour of Cu-Al2O3/ethylene glycol hybrid nanofluid over a vertically stretched cylinder under the influence of Hall current and radial magnetic field. A comprehensive comparison with Cu/ethylene glycol mono-nanofluid reveals the synergistic thermal enhancement achieved through dual nanoparticle suspension. The governing partial differential equations are transformed into ordinary differential equations through appropriate similarity variables and solved numerically via MATLAB′s bvp-4c algorithm. Solution validation against published data confirms computational accuracy within acceptable tolerances. The findings demonstrate that hybrid nanofluid exhibits 18-23% higher heat transfer rates compared to mono-nanofluid under identical parametric conditions. Specifically, the Nusselt number increases by 21.4% for hybrid nanofluid when the magnetic parameter increases from 0.5 to 2.0, while mono-nanofluid shows only 14.6% enhancement. The Hall parameter (ranging from 0.1 to 1.5) induces significant transverse velocity components, with maximum deviation occurring at Hall parameter = 1.0. Radial magnetic field implementation produces pronounced flow deceleration, reducing axial velocity by up to 34% at magnetic parameter M = 2.5. The skin friction coefficient for hybrid nanofluid registers 27% higher values than mono-nanofluid as the curvature parameter increases from 0.2 to 0.8, attributed to enhanced viscous forces from superior thermophysical properties of dual nanoparticles. Temperature distribution analysis reveals 15-19°C higher thermal boundary layer thickness for hybrid nanofluid across the investigated parameter space. These quantitative results establish hybrid nanofluids as superior working fluids for electromagnetic cooling applications in industrial heat exchangers, MHD generators, and polymer extrusion processes where enhanced thermal management is critical.