Affiliation:
1. Spectral Energies, LLC
2. The University of Tennessee Space Institute
Abstract
The recent progress in high-speed (
≥
100
k
H
z
) laser diagnostics for hypersonic
flows is reviewed. Owing to the ultrahigh flow speed, a laser
frequency of 100 kHz or higher is required for hypersonic diagnostics.
Here, two main laser diagnostic techniques are discussed: focused
laser differential interferometry (FLDI) and pulse-burst laser-based
diagnostics. Single- and multiple-point FLDI measurements have been
widely applied to hypersonic flows for flow velocity and density
fluctuation measurements. The progress of pulse-burst laser-based
hypersonic diagnostics, including flow velocity measurements and 2D
flow visualization, is also discussed.
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering
Cited by
8 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献