Impact of partial magnetic field on natural convection in nanofluid-filled inclined cavities

Date

2026-04-01

Author

Oglakkaya, F. S.
Bozkaya, Canan

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

85
views

0
downloads

Cite This

This study examines unsteady thermal convection of an Al2O3-water nanofluid in a differentially heated, wavy-walled inclined enclosure under a partially applied magnetic field. Utilizing a two-level time integration scheme combined with the dual reciprocity boundary element method (DRBEM) in space, the research investigates the impact of key parameters, including a wide range of Rayleigh and Hartmann numbers, magnetic field width, cavity inclination angle, number of undulations of wavy walls, and nanofluid solid volume fraction, on the flow dynamics and heat transfer. DRBEM approach, which focuses only on the boundary discretization, enables efficient numerical analysis while reducing computational load. Results presented through streamlines, isotherms, and average Nusselt number, reveal that increasing Hartmann number suppresses the convective motion, leading to a reduction of average Nusselt number, while increasing the Rayleigh number or nanoparticle concentration intensifies the heat transfer rate in enclosures with both flat and wavy-walls. The highest thermal performance is obtained when the enclosure with flat walls is tilted by a right angle under the presence of partially applied magnetic field for various combinations of the governing parameters. This research provides a comprehensive understanding of how multi-physical parameters and a partially applied magnetic field influence thermal convection, particularly within complex geometries, thereby contributing to advancements in the design and analysis of thermal systems.

URI

https://hdl.handle.net/11511/118855

Collections

Department of Mathematics, Article