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Laminar-Separation SensorSensor detects flow reversal in boundary layer. Laminar-separation sensor provides means for detecting laminar-separation bubble by use of very thin, surface-mounted sensor. Consists of flush array of three proximate thin films. Middle film electronically heated by means of constant-temperature anemometer (CTA). Outer films, one upstream and one downstream of middle film, incorporated into bridge circuit to respond as resistance thermometers. This sensor provides only known surface-mounted means for positively identifying pressure of laminar separation as cause of boundary-layer transition.
Document ID
19880000430
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Holmes, Bruce J. (NASA Langley Research Center, Hampton, Va.)
Holmes, Harlan K. (NASA Langley Research Center, Hampton, Va.)
Moore, Thomas C. (NASA Langley Research Center, Hampton, Va.)
Manuel, Gregory S. (NASA Langley Research Center, Hampton, Va.)
Croom, Cynthia C. (NASA Langley Research Center, Hampton, Va.)
Carraway, Debra L. (Old Dominion University)
Date Acquired
August 13, 2013
Publication Date
September 1, 1988
Publication Information
Publication: NASA Tech Briefs
Volume: 12
Issue: 8
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LAR-13463
Report Number: LAR-13463
ISSN: 0145-319X
Accession Number
88B10430
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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