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Investigation of a laser Doppler velocimeter system to measure the flow field of a large scale V/STOL aircraft in ground effectAn experimental research program for measuring the flow field around a 70 percent scale V/STOL aircraft model in ground effect is described. The velocity measurements were conducted with a ground-based laser Doppler velocimeter at an outdoor test pad. The remote sensing instrumentation, experimental tests, and results of the velocity surveys are discussed. The distribution of vertical velocity in the fan jet and fountain, the radial velocity in the wall jet and the horizontal velocity along the aircraft underside are presented for different engine rpms and aircraft heights above ground. The study shows that it is feasible to use a mobile laser Doppler velocimeter to measure the flow field generated by a large scale V/STOL aircraft operating in ground effect.
Document ID
19790054961
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Zalay, A. D.
(Lockheed Missiles and Space Co. Huntsville, AL, United States)
Brashears, M. R.
(Lockheed Missiles and Space Co. Huntsville, AL, United States)
Jordan, A. J.
(Lockheed Missiles and Space Co. Huntsville, AL, United States)
Shrider, K. R.
(Lockheed Missiles and Space Co. Huntsville, AL, United States)
Vought, C. D.
(Lockheed Missiles and Space Co., Inc. Huntsville, Ala., United States)
Date Acquired
August 9, 2013
Publication Date
June 1, 1979
Subject Category
Ground Support Systems And Facilities (Space)
Report/Patent Number
AIAA PAPER 79-1184
Meeting Information
Meeting: AIAA, SAE, and ASME, Joint Propulsion Conference
Location: Las Vegas, NV
Start Date: June 18, 1979
End Date: June 20, 1979
Sponsors: ASME, SAE, AIAA
Accession Number
79A38974
Distribution Limits
Public
Copyright
Other

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