Flow Angle and Shear Stress Measurements Using Heated Films and Wires

[+] Author and Article Information
W. J. McCroskey

U. S. Army Air Mobility R&D Laboratory, Ames Research Center, Moffett Field, Calif.

E. J. Durbin

Princeton University, Princeton, N. J.

J. Basic Eng 94(1), 46-52 (Mar 01, 1972) (7 pages) doi:10.1115/1.3425384 History: Received July 27, 1971; Online October 27, 2010


The heat transfer characteristics of yawed slender filaments have been generalized to include pairs of heated-film skin friction gages, as well as conventional hot wire probes, New sensor designs have been combined with a novel double-bridge electronic feedback system with accurate differential power capabilities for improved measurements in complex environments. Results of detailed calibration experiments illustrate the accuracy, simplicity, and utility of the probe designs and circuit techniques.

Copyright © 1972 by ASME
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