NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A simplified oil-film skin-friction meterThe oil-film method of skin friction measurement, which does not require calibration, nevertheless entails that interferometric measurements of the oil film be obtained. The oil-film method is presently simplified by eliminating interferometry and its requisite polished surface, by taking direct and dynamic measurements of the oil-film slope with a small position-sensing photodiode. This technique has undergone verification in incompressible turbulent and laminar flows in flat-plate boundary layers and pipe flows; the meter is judged to be inexpensive, simple, and robust.
Document ID
19880061726
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bandyopadhyay, P. R.
(NASA Langley Research Center Hampton, VA, United States)
Weinstein, L. M.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1988
Subject Category
Instrumentation And Photography
Report/Patent Number
AIAA PAPER 88-3601
Meeting Information
Meeting: AIAA, ASME, SIAM, and APS, National Fluid Dynamics Congress
Location: Cincinnati, OH
Country: United States
Start Date: July 25, 1988
End Date: July 28, 1988
Accession Number
88A48953
Funding Number(s)
CONTRACT_GRANT: NAS1-18235
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available