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A user's guide to the Langley 16- by 24-inch water tunnelThe Langley 16 x 24 inch Water Tunnel is described in detail, along with all the supporting equipment used in its operation as a flow visualization test facility. These include the laser and incandescent lighting systems; and the photographic, video, and laser fluorescence anemometer systems used to make permanent records of the test results. This facility is a closed return water tunnel capable of test section velocities from 0 to 0.75 feet per second with flow through the 16 x 24 inch test section in a downward (vertical) direction. The velocity normally used for testing is 0.25 feet per second where the most uniform flow occurs, and is slow enough to easily observe flow phenomena such as vortex flow with the unaided eye. An overview is given of the operational characteristics, procedures, and capabilities of the water tunnel to potential users of the facility so that they may determine if the facility meets their needs for a planned study.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Pendergraft, Odis C., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Neuhart, Dan H.
(NASA Langley Research Center Hampton, VA, United States)
Kariya, Timmy T.
(Vigyan Research Associates, Inc., Hampton VA., United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1992
Subject Category
Research And Support Facilities (Air)
Report/Patent Number
NAS 1.15:104200
Accession Number
Funding Number(s)
PROJECT: RTOP 505-62-30-01
Distribution Limits
Work of the US Gov. Public Use Permitted.
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