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Cross-wire anemometry in high intensity turbulence

Published online by Cambridge University Press:  29 March 2006

Narinder K. Tutu  and
Rene Chevray
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
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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
Information
Journal of Fluid Mechanics , Volume 71 , Issue 4 , 28 October 1975 , pp. 785 - 800
Copyright
© 1975 Cambridge University Press

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References

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