Open AccessDevelopment of a three-legged, high-speed, burst-mode laser system for simultaneous measurements of velocity and scalars in reacting flows
Author(s) -
Sukesh Roy,
Naibo Jiang,
Paul S. Hsu,
Tongxun Yi,
Mikhail N. Slipchenko,
Josef Felver,
Jordi Estevadeordal,
James R. Gord
Publication year - 2018
Publication title -
optics letters/optics index
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.43.002704
Subject(s) - burst mode (computing) , optics , particle image velocimetry , laser , turbulence , velocimetry , planar laser induced fluorescence , pulse (music) , jet (fluid) , materials science , combustion , high speed photography , physics , pulse duration , laser induced fluorescence , mechanics , detector , chemistry , organic chemistry , electrical engineering , engineering
We report the development of a three-legged, high-speed, high-energy, burst-mode laser system for the simultaneous measurement of velocity and key combustion species in turbulent reacting flows. The laser system is designed to simultaneously amplify a four-pulse sequence [including a doublet pulse for particle image velocimetry (PIV) measurements] with variable pulse separations at a repetition rate up to 500 kHz and a burst duration of 1-10 ms. With the three-legged, burst-mode laser system, we demonstrate simultaneous measurements of velocity using PIV and planar laser-induced fluorescence imaging of hydroxyl and formaldehyde in a turbulent jet flame.