Abstract
This study used the magnetohydrodynamic approach to analyze the performance of submerged blunt objects, aiming to improve the aerodynamic design by directing the drag coefficient and studying the boundary layer behavior in liquid gallium (Ga), a liquid metal that conducts electricity. This study aims to bridge this gap using the magnetohydrodynamic (MHD) approach to investigate the boundary layer behavior of submerged blunt objects in an electrically conducting fluid, providing insights into potential applications in various industries and advancing the field of MHD flow control. The numerical simulations used the computational fluid dynamics commercial code, Star CCM+. The numerical simulations predicted the performance of the boundary layer of a blunt object under multiple operating conditions. It was noted that the modulated Lorentz force effectively reduced turbulent skin friction drag, and MHD flow control using electromagnetic forces was achieved. The magnetic field moves the sub-viscous layer within the boundary layer, lifting the drag coefficient off the surface of a blunt object.