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Triple velocity correlations in isotropic turbulence

Published online by Cambridge University Press:  24 October 2008

R. W. Stewart
R. W. Stewart
Affiliation:
Cavendish LaboratoryCambridge
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Abstract

The triple velocity correlation, in turbulence produced by inserting a square-mesh grid near the beginning of the working section of a wind tunnel, has been measured for mesh Reynolds numbers of RM = 5300, 21,200 and 42,400 (RM = UM/ν, where U is the mean wind speed in the working section of the tunnel and M is the centre to centre spacing of the rods making up the grid; ν is the kinematic viscosity of air). At the lowest Reynolds number the correlation has been measured at distances downstream of the grid varying from 20 to 120M. This range covers practically all of the initial period of the decay of turbulence, where the turbulent intensity varies as t−1.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 47 , Issue 1 , January 1951 , pp. 146 - 157
Copyright
Copyright © Cambridge Philosophical Society 1951

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References

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