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Direct Measurements of Skin Friction

Dhawan, Satish (1953) Direct Measurements of Skin Friction. National Advisory Committee for Aeronautics , Washington, DC. http://resolver.caltech.edu/CaltechAUTHORS:20140807-152807050

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Abstract

A device has been developed to measure local skin friction on a flat plate by measuring the force exerted upon a very small movable part of the surface of the flat plate. These forces, which range from about 1 milligram to about 100 milligrams, are measured by means of a reactance device. The apparatus was first applied to measurements in the low-speed range, both for laminar and turbulent boundary layers. The measured skin-friction coefficients show excellent agreement with Blasius' and Von Karman's results. The device was then applied to high-speed subsonic flow and the turbulent-skin-friction coefficients were determined up to a Mach number of about 0.8. A few measurements in supersonic flow were also made. This paper describes the design and construction of the device and the results of the measurements.


Item Type:Report or Paper (Technical Report)
Related URLs:
URLURL TypeDescription
http://hdl.handle.net/2060/19930092157OrganizationArticle
Additional Information:No copyright. Supersedes NACA Technical Note 2567.
Other Numbering System:
Other Numbering System NameOther Numbering System ID
NACA Technical Report1121
Record Number:CaltechAUTHORS:20140807-152807050
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140807-152807050
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48207
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:07 Aug 2014 22:33
Last Modified:13 Feb 2019 18:03

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