Junfeng Lu

Quantitative characterization of triangular leakage flow in a shell-and-tube heat exchanger with Y-shaped helical baffles

Triangular leakage flow near adjacent baffle junctions is a typical bypass-flow problem in discontinuous helical baffle shell-and-tube heat exchangers, which weakens transverse disturbance and local heat transfer. However, existing evaluations still rely largely on qualitative fl...

Bio-inspired fish-like micropins for enhancing the thermo-hydraulic performance of wavy microchannel heat sinks for IGBT cooling

Efficient liquid cooling is essential for high-power insulated gate bipolar transistor (IGBT) modules in new energy vehicles. This study proposes a wavy microchannel heat sink with bio-inspired fish-like micropins (SWP-FS) to improve the heat transfer-flow resistance trade-off. C...

Self‐Filtering InGaN/GaN Multiple Quantum Wells Ultraviolet Photodetector With 12 nm Narrowband and 82 ns Ultrafast Response

ABSTRACT Ultraviolet (UV) detection technology is critically important in fields such as environmental monitoring and communications. However, conventional photodetectors struggle to achieve both narrowband spectral response and ultrafast operational speed simultaneously. Herein,...