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Turbulence measurements with inclined hot-wires Part 2. Hot-wire response equations

Published online by Cambridge University Press:  28 March 2006

F. H. Champagne
Affiliation:
Present address: Boeing Scientific Research Laboratories, Seattle, Washington. Department of Chemical Engineering, University of Washington and Boeing Scientific Research Laboratories
C. A. Sleicher
Affiliation:
Department of Chemical Engineering, University of Washington and Boeing Scientific Research Laboratories

Abstract

Hot-wire response equations to include the effects of the tangential velocity component as well as the non-linearities caused by high intensity turbulence are derived for linearized constant temperature operation. For low intensity turbulence similar equations are derived for constant current operation. The equations are applied to an X-wire array to determine the errors in selected turbulence quantities which arise from the assumption of cosine law cooling. The error depends upon the quantity measured, the method of operation, and [lscr ]/d. For [lscr ]/d = 200 the error ranges from 0 to 17%.

Type
Research Article
Copyright
© 1967 Cambridge University Press

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References

Corrsin, S. 1963 Encyclopedia of Physics, Vol. VII/2, 555. Berlin: Springer-Verlag OHG.
Heskestad, G. 1963 Ph.D. Thesis, Department of Mechanics, Johns Hopkins University.
Rose, W. G. 1962 J. Appl. Mech. 29, 554.