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A pulsed-wire technique for velocity measurements in highly turbulent flows

Published online by Cambridge University Press:  29 March 2006

L. J. S. Bradbury  and
I. P. Castro
L. J. S. Bradbury
Affiliation:
Aeronautics Department, Imperial College Present address: Mechanical Engineering Department, University of Suitey.
I. P. Castro
Affiliation:
Aeronautics Department, Imperial College
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Abstract

The velocity measuring technique described in this paper consists of measuring the time of flight of a tracer of heated air from an electrically pulsed wire to one of two sensor wires which are operated as resistance thermometers. These sensor wires are at right angles to the pulsed wire and are placed one on either side of the pulsed wire. The instrument may be used in highly turbulent flows including regions in which flow reversals occur. The paper discusses the theoretical behaviour of the probe and the results of some calibration experiments.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 49 , Issue 4 , 29 October 1971 , pp. 657 - 691
Copyright
© 1971 Cambridge University Press

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References

Bauer, A. B. 1965 Direct measurement of velocity by hot wire memometry. A.I.A.A. J., 3, 1189Google Scholar
Bradbury, L. J. S. 1969 A pulsed-wire technique for velocity measurements in highly turbulent flows. NPL Aero Report 1284.Google Scholar
Bradbury, L. J. S. & Castro, I. P. 1971 Some comments on heat transfer laws for fine wires. J. Fluid Mech. To be published.Google Scholar
Castro, I. P. 1970 The pulsed wire anemometer - an analysis to determine the errors caused by the probe finite yaw response. Imperial College Aeronautics Dept. Report.Google Scholar
Castro, I. P. 1971 Wake characteristics of two-dimensional perforated plates normal to an airstream. J. Fluid Mech., 46, 599Google Scholar
Collis, D. C. & Williams, N. J. 1959 Two-dimensional convection from heated wires at low Reynolds numbers. J. Fluid Mech., 6, 357Google Scholar
Mandel, J. 1964 The statistical analysis of experimental data. New York: Interscience.
Mcquaid, J. & Wright, W. 1971 The measurement of fluctuating velocities in flows of gas mixtures using a pulsed wire anemometer. To be published.
Tombach, I.H. 1969 Velocity measurements with a new probe in inhomogeneous turbulent jets. Ph.D. thesis, California Institute of Technology.