Open AccessApplication of the structured laser illumination to planar optical diagnostics of the flows with nonuniform density
Author(s) -
D. K. Sharaborin,
R. V. Tolstoguzov,
Е. В. Фролова
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1421/1/012051
Subject(s) - rayleigh scattering , optics , laser , planar , scattering , materials science , radiation , lidar , energy (signal processing) , intensity (physics) , physics , computer science , computer graphics (images) , quantum mechanics
The aim of this work was to develop a method of panoramic optical diagnostics of the inhomogeneity of the density field in stratified flows based on the registration of the distribution of the Rayleigh scattering intensity using structured laser radiation. Several approaches have been implemented for organizing spatial modulation of laser illumination, intended for use with various values of the incident radiation energy density. To test the processing and reconstruction algorithms of the experimental data, a series of measurements was carried out using the method of planar laser-induced fluorescence. The distribution of local density in a jet of carbon dioxide flowing into atmospheric air was measured experimentally using a method based on the registration of Rayleigh scattering.