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Instrument Measures Airflow Friction Without ContactDual beam laser interferometer determines airflow friction against body by measuring time-varying thickness of wind sheared oil film. Measurements yield skin friction between film and airstream. Errors from prerun oil flow, tunnel starting transients, and initial surface waves therefore eliminated.
Document ID
19830000047
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Monson, D. J.
Date Acquired
August 11, 2013
Publication Date
August 1, 1983
Publication Information
Publication: NASA Tech Briefs
Volume: 7
Issue: 3
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
ARC-11354
Accession Number
83B10047
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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