Development and application of the laser Doppler anemometer with direct spectral analysis for studying high-velocity multiphase flows
S.V. Poplavski, A.Yu. Nesterov, V.M. Boiko
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
Keywords: laser Doppler anemometry, direct spectral analysis, high-resolution spectral devices, diagnostics of high-velocity multiphase flows
Abstract
The present study is aimed at the development of a laser Doppler anemometer (LDA) for investigating high-velocity multiphase flows. Based on the analysis of the Doppler anemometry methods, requirements to modern LDAs for solving the above-mentioned problems are formulated, and the ways of their implementation with allowance for the present status of laser engineering and spectroscopy are outlined. A prototype of the anemometer with direct spectral analysis with the most updated elemental base is presented. Its workability is demonstrated by an example of supersonic gas-liquid jets; it is also shown that the anemometer can be also applied to solve other problems.
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