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Experiments in Fluids
Erschienen in: Experiments in Fluids 3/2004

01.03.2004 | Original Paper

Creating homogeneous and isotropic turbulence without a mean flow

verfasst von: W. Hwang, J. K. Eaton

Erschienen in: Experiments in Fluids | Ausgabe 3/2004

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Abstract

A novel method of creating homogeneous and isotropic turbulence with small mean flow has been developed. Eight synthetic jet actuators on the corners of a cubic chamber can create energetic turbulence with root-mean-square (rms) velocities as large as 0.87 m/s, corresponding to a Taylor microscale Reynolds number, Re λ , of 218. Stationary turbulence results show that the turbulence was isotropic, with the rms velocity ratio equal to 1.03, and also homogeneous within the region of interest. Natural decaying turbulence measurements confirmed the power-law decay of the turbulent kinetic energy, with the decay exponent n equal to 1.86 for an initial Re λ of 224.
Vorheriger Artikel Determination of mixing time by colourimetric diagnosis—Application to a new mixing system
Nächster Artikel Development and validation of echo PIV

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Metadaten
Titel
Creating homogeneous and isotropic turbulence without a mean flow
verfasst von
W. Hwang
J. K. Eaton
Publikationsdatum
01.03.2004
Verlag
Springer-Verlag
Erschienen in
Experiments in Fluids / Ausgabe 3/2004
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI
https://doi.org/10.1007/s00348-003-0742-6

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