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 also be applied to solve other problems.
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The authors would like to express their sincere gratitude to the Angstrom company for the possibility of using the WS-7 spectrum analyzer in the LDA prototype and for useful consultations.
This study was performed within the framework of the Program of Fundamental Research of the State Academies of Sciences in 2013–2020 (Project No. AAAA-A17-117030610137-0).
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Poplavski, S.V., Nesterov, A.Y. & Boiko, V.M. Development and application of the laser Doppler anemometer with direct spectral analysis for studying high-velocity multiphase flows. Thermophys. Aeromech. 27, 555–563 (2020). https://doi.org/10.1134/S0869864320040083
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DOI: https://doi.org/10.1134/S0869864320040083