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Lehigh University logo
Lehigh University logo

Xuanyu Zhu

3D Planar Laser-Induced Fluorescence (PLIF) Reconstruction of Hairpin Vortex

Department: Mechanical Engineering
Advisors: Dr. Daniel Sabatino, Dr. Tobias Rossmann

Abstract:
Numerous studies have been conducted to study the development and behavior of hairpin vortex. This paper discusses how Three-dimensional (3D) Planar Laser-Induced Fluorescence (PLIF) is utilized to measure the formation and regeneration of a hairpin vortex in a laminar boundary layer. The vortex is developed by fluid injection in a free-surface water channel. The 3D scanning process is recorded by a High-Speed cameras. Dragonfly, a data analysis and visualization application, is employed to process the imaging data and rebuild the 3D reconstruction of the hairpin both from scalar and velocity vector field. The outcomes of PLIF with detailed spatial and temporal development information will be used make comparisons with the flow field derived from Tomographic PIV.

About Xuanyu Zhu:
Xuanyu Zhu is a senior student at Lafayette College pursuing BS in Mechanical Engineering. He is from Jiangsu, China. Xuanyu has been involved in research with Dr. Daniel Sabatino and Dr. Tobias Rossmann since the spring 2016. His research focuses on using 3D Planar Laser-Induced Fluorescence technique to examine the regeneration process of hairpin vortex. Outside of academics, he is interested in Go (Weiqi), Violin and Marathon. He intends to continue research in graduate school after graduating from Lafayette College.