Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-18T21:51:38.954Z Has data issue: false hasContentIssue false

Cross-wire anemometry in high intensity turbulence

Published online by Cambridge University Press:  29 March 2006

Narinder K. Tutu
Affiliation:
Department of Mechanics, State University of New York, Stony Brook
Rene Chevray
Affiliation:
Department of Mechanics, State University of New York, Stony Brook

Abstract

An analysis of the response of an X-probe which takes into account the axial sensitivity k, the effect of the w component of velocity and the effective rectification by the hot wire is presented. Owing to rectification points in the measured u, v ‘phase plane’ are confined within a certain sector, thus leading to distortions in the measured joint probability density functions. Numerical computations show that high turbulence intensities lead to large errors in second-order moments measured by cross-wire probes; for instance, the error in the measured correlation (over and above that due to k) can be as high as 28% when the turbulence intensity is 35%.

Type
Research Article
Copyright
© 1975 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Champagne, F. H. & Sleicher, C. A. 1967 J. Fluid Mech. 28, 177.
Champagne, F. H., Sleicher, C. A. & Wehrmann, O. H. 1967 J. Fluid Mech. 28, 153.
Eckelmann, H. 1974 J. Fluid Mech. 65, 439.
Heskestad, G. 1965 J. Fluid Mech. 32, 721.
Rodi, W. 1971 Imperial College, Dept. Mech. Engng Rep. ET/TN/B/10.
Wygnanski, I. & Fiedler, H. 1969 J. Fluid Mech. 38, 577.