Abstract
A novel sampling signal processor overcomes the difficulties encountered with frequency trackers in the investigation of unseeded highly turbulent flows. This sampling system consists essentially of a swept filter, e.g. a standard RF-spectrum analyzer, a digital data memory and a storage oscilloscope. It is able to determine first-order statistical averages of turbulent flows with high fluctuation frequencies and amplitudes even at very low scattering particle concentrations. Since the velocity samples are not statistically independent of the velocity, the sampled velocity data has to be corrected in order to obtain unbiased statistical averages. A theoretical analysis and experimental investigations of the system and its application are given.
Recommended Citation
Iten, P. D., "Turbulence Measurements with a Sampling Laser-Doppler Velocimeter" (1973). Symposia on Turbulence in Liquids. 111.
https://scholarsmine.mst.edu/sotil/111
Meeting Name
3rd Biennial Symposium on Turbulence in Liquids (1973: Sep., Rolla, MO)
Department(s)
Chemical and Biochemical Engineering
Document Type
Article - Conference proceedings
Presentation Type
Contributed Paper
Session
Laser-Doppler Velocimetry
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 1973 University of Missouri--Rolla, All rights reserved.
Publication Date
01 Jan 1973
