J. Phys. II France
Volume 4, Numéro 9, September 1994
Page(s) 1461 - 1468
DOI: 10.1051/jp2:1994211
J. Phys. II France 4 (1994) 1461-1468

Correction to the Taylor hypothesis in swirling flows

J.-F. Pinton1 and R. Labbé1, 2

1  Ecole Normale Supérieure de Lyon, URA CNRS 1325, 69364 Lyon, France
2  Universidad de Santiago de Chile, Casilla 307, Correo 2, Santiago, Chile

(Received 15 March 1994, received in final form 19 May 1994, accepted 24 May 1944)

We present experimental results on the analysis of turbulent velocity measurements in the flow that develops in the gap between two coaxial counter-rotating disks (von Kármán swirling flow). In the absence of a well-defined mean velocity we introduce the use of a "local Taylor hypothesis" to obtain spatial information from hot-wire measurement at a fixed location. The results axe in agreement with conventional open-flow experiments.

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