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RESEARCH PAPERS

Interpreting Orthogonal Triple-Wire Data From Very High Turbulence Flows

[+] Author and Article Information
P. K. Maciejewski

Mechanical Engineering Department, University of Pittsburgh, Pittsburgh, PA 15261

R. J. Moffat

Department of Mechanical Engineering, Stanford University, Stanford, CA 94305

J. Fluids Eng 116(3), 463-468 (Sep 01, 1994) (6 pages) doi:10.1115/1.2910299 History: Received June 07, 1993; Revised September 28, 1993; Online May 23, 2008

Abstract

For turbulence intensities of up to 30 percent, an orthogonal triple-wire probe can be used to make accurate measurements of the instantaneous velocity vector. Above this limit difficulties arise in the interpretation of the data due to the problem described as rectification. This paper presents a means by which data from an orthogonal triple-wire probe may be interpreted for single point measurements in Gaussian turbulence with intensity up to 50 percent resulting in unbiased estimates of the velocity mean vector, Reynolds stress tensor, and time correlation coefficients.

Copyright © 1994 by The American Society of Mechanical Engineers
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