Laminar Fluid Flow Measurements Employing a White Light Fringe Image Velocimeter (WFIV)

1979 ◽  
Vol 46 (1) ◽  
pp. 218-220 ◽  
Author(s):  
J. H. C. Chan ◽  
E. A. Ballik
Keyword(s):  
Fluid Flow ◽  
Laminar Flow ◽  
White Light ◽  
Laser Doppler ◽  
Laser Doppler Velocimeter ◽  
Flow Measurements ◽  
Laminar Fluid Flow ◽  
Flow Velocities

A compact white light fringe image velocimeter (WFIV) is used to measure laminar flow. It is demonstrated, by comparison with similar measurements employing a differential laser Doppler velocimeter (DLDV), that the WFIV is a practical and important technique for determining flow velocities.

8C2 - Fluid flow measurements with a laser Doppler velocimeter

1966 ◽  
Vol 2 (8) ◽  
pp. 260-266 ◽  
Author(s):  
J. Foremen ◽  
E. George ◽  
J. Jetton ◽  
R. Lewis ◽  
J. Thornton ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Laser Doppler ◽  
Laser Doppler Velocimeter ◽  
Flow Measurements

Laser Doppler velocimeter for measurement of localized flow velocities in liquids

1966 ◽  
Vol 54 (3) ◽  
pp. 424-425 ◽  
Author(s):  
J.W. Foreman ◽  
R.D. Lewis ◽  
J.R. Thornton ◽  
H.J. Watson
Keyword(s):  
Laser Doppler ◽  
Laser Doppler Velocimeter ◽  
Flow Velocities

Wake flow measurements with a mobile laser Doppler velocimeter system

1978 ◽  
Author(s):  
D. WILSON ◽  
A. ZALAY ◽  
M. BRASHEARS ◽  
C. CRAVEN ◽  
K. SHRIDER ◽  
...  
Keyword(s):  
Laser Doppler ◽  
Wake Flow ◽  
Laser Doppler Velocimeter ◽  
Flow Measurements

Investigation of the development of laminar flow at the entrance of a two-dimensional channel, using a laser-doppler velocimeter

1976 ◽  
Vol 10 (5) ◽  
pp. 850-853 ◽  
Author(s):  
V. P. Ivanov ◽  
V. P. Klochkov ◽  
L. F. Kozlov ◽  
V. I. Orlanov
Keyword(s):  
Laminar Flow ◽  
Laser Doppler ◽  
Laser Doppler Velocimeter ◽  
Two Dimensional

scholarly journals Fluid flow measurements using a scanning laser Doppler vibrometer

2010 ◽  
Author(s):  
S. Vanlanduit ◽  
F. Prezniak ◽  
R. Longo ◽  
C. Vuye ◽  
P. Guillaume ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Laser Doppler Vibrometer ◽  
Laser Doppler ◽  
Scanning Laser ◽  
Flow Measurements ◽  
Scanning Laser Doppler Vibrometer

Gas Velocity Measurements Within a Compressor Rotor Passage Using the Laser Doppler Velocimeter

1973 ◽  
Vol 95 (2) ◽  
pp. 91-96 ◽  
Author(s):  
D. C. Wisler ◽  
P. W. Mossey
Keyword(s):  
High Speed ◽  
Axial Compressor ◽  
Laser Doppler ◽  
Laser Doppler Velocimeter ◽  
Seed Particle ◽  
Gas Velocity ◽  
Velocity Measurements ◽  
Flow Measurements ◽  
Velocity Magnitude ◽  
New Instrument

The laser Doppler velocimeter, a new instrument capable of making nondisturbing gas velocity measurements, was used to investigate the flowfield within the rotating blade row of a low speed axial compressor. The velocimeter operates by measuring the transit time of a seed particle across interference fringes produced at the intersection of a split and crossed laser beam. The velocity (magnitude and direction) measurements made with the laser at the rotor inlet and discharge generally agreed within 2 to 3 per cent with measurements made with a hot film anemometer, pitot-static probe and wedge and tuft angle probes. Detailed flowfield measurements within the rotor passage were then obtained and compared with the analytical results from a potential flow model. This technique shows promise in making detailed flow measurements within high speed fans, compressors, turbines and nozzles, including the mapping of shock structures.

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