Problems of theory and practical use of a laser doppler velocimeter in the investigation of turbulent flows

Autor:	A. A. Stolpovskii, G. A. Barill, Yu. N. Dubnishchev, V. P. Koronkevich, N. F. Shmoilov, E. N. Utkin, V. S. Sobolev
Rok vydání:	1975
Předmět:	Physics Scattering Turbulence business.industry Mechanical Engineering Block diagram Laser Doppler velocimetry Condensed Matter Physics Signal symbols.namesake Optics Mechanics of Materials symbols Cylinder business Image resolution Doppler effect
Zdroj:	Journal of Applied Mechanics and Technical Physics. 14:90-98
ISSN:	1573-8620 0021-8944
DOI:	10.1007/bf00850582
Popis:	At present great attention is being devoted to the development of laser Doppler velocimeters (LDV) for experimental investigation of turbulent flows. The main types of optical schemes of LDV are discussed in this article. Formulas for the output signal of the photoreceiver and the results of spectral analysis of this signal with the statistics of the scattering centers taken into consideration are presented. The uncertainty relation for the spatial resolution and the width of the Doppler spectrum is obtained. The optical scheme of a three-component velocimeter and the block diagram of its electronic part are given. The potentialities of the meter are demonstrated using, as an example, flow past a cylinder.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::65e84f89c43f33fcd41a2606f47f0151 https://doi.org/10.1007/bf00850582 Zobrazit plný text záznamu Full text from SpringerLink