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Note on the effect of a nearby obstacle on turbulence intensity in a boundary layer

Published online by Cambridge University Press:  28 March 2006

D. J. Tritton
D. J. Tritton
Affiliation:
School of Physics, University of Newcastle-upon-Tyne
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Abstract

It has been observed that the intensity of turbulence measured with a hot-wire anemometer close to the wall in a boundary layer can be substantially reduced by the presence of an obstacle nearby in a lateral direction. The obstacle in these experiments was another hot-wire probe. A brief survey was made of the positions of the two probes that could give a significant effect. However, the observation is reported mainly as an interesting phenomenon requiring further investigation. It is also of relevance to hot-wire anemometry; there may be a previously unsuspected and troublesome source of error due to a wire's own support.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 28 , Issue 3 , 26 May 1967 , pp. 433 - 437
Copyright
© 1967 Cambridge University Press

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References

Tritton, D. J. 1967 J. Fluid Mech. 28, 439.