Abstract
During the past several years, two-dimensional imaging techniques have become widely used as a diagnostic tool for studying turbulence and combustion. The reason for this increased interest in simultaneous multipoint mapping techniques has been due largely to the realization that the large-scale structures play an important role in these flows and the availability of quantitative data on the spatial characteristics of the structures allows greater understanding of their role. Many different light scattering mechanisms have been used for these studies including Lorenz/Mie,1 Rayleigh,2 fluorescence,3 and Raman4 scattering. The proper selection of the scattering mechanism and the experimental configuration makes it possible to measure the species concentration, temperature, density, or velocity in two dimensions at up to 10,000 different points in a plane intersecting the flow.
© 1986 Optical Society of America
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