Laser Powder Bed Fusion (LPBF) is a pivotal additive manufacturing technology whose final quality is determined by the complex interplay of process parameters such as laser power and scanning speed. Relying solely on physical experimentation to control internal defects (e.g., pores and cracks) is both inefficient and c...
This study presents a particle-scale coupled CFD–DEM numerical approach for elucidating aerodynamic sorting mechanisms and optimizing process parameters. Non-spherical particle models were developed to represent the geometric and physical differences between shells and seed-bearing particles. The Stokes number, which c...
Highlights A 3D electromagnetic–fluid dynamic model was established to simulate mold surface flow in continuous casting. Predictive formulas for maximum surface velocity and high-velocity range were derived under varying process parameters. A CFD-derived regression model predicts key surface-flow characteristics within...
Increasing heat transfer in double-pipe heat exchangers (DPHEs) is an interesting topic due to challenges that still remain to be solved, especially when working under low-to-moderate flow rate regimes where poor mixing and thermal boundary layers reduce the effectiveness of convection. Despite numerous studies conduct...
High-speed planing craft generate complex local flows, including spray, free-surface deformation, and air ventilation behind steps, which complicate CFD-based resistance prediction. This study investigates three factors affecting resistance estimation: free-surface numerical diffusion, computational-domain confinement,...
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