Applications of Laser Doppler Techniques for Measurements in Large Flow Systems.

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Abstract:

The objective of the study was to develop the theoretical and experimental knowledge necessary to utilize the laser Doppler velocity measurement technique in large flow systems. Theoretical treatments were developed to allow prediction of the capabilities and limitations of the laser Doppler technique as applied to 1 use in the backscatter mode with no artificial contaminants in the flow 2 localization of the measurement volume and its effects on the measurement of turbulence phenomena and 3 degradation of the heterodyning efficiency due to long path lengths in optically inhomogeneous media. Experimental confirmation of theoretical predictions were carried out to demonstrate validity or to establish an experimental technique. Author

Author(s):
Lewis, Tex D. ; Chatterton, Neil E.
Author Organization(s):
TELEDYNE BROWN ENGINEERING HUNTSVILLE ALA SCIENCE AND ENGINEERING DIV
Descriptive Note:
Technical note,
Pagination:
0186

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
SE-301
Contract/Grant Number(s):
N00014-70-C-0060
Project Number(s):
SR009-01-01
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*FLOWMETERS, LASERS), (*LASERS, DOPPLER EFFECT), THEORY, MATHEMATICAL PREDICTION, EXPERIMENTAL DATA, CORRELATION TECHNIQUES, PARTICLE SIZE, VELOCITY, COMPUTER PROGRAMMING, TURBULENCE, SIGNAL TO NOISE RATIO, BACKSCATTERING
Field(s)/Group(s):
Lasers and Masers, Fluid Mechanics
Keyword(s):
*LASER DOPPLER TECHNIQUES, MIE SCATTERING
Report Date:
1970 Nov 01