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HRT

Seminar

Wall turbulence: from the laboratory to the atmosphere

Marusic, I (Melbourne)
Wednesday 17 September 2008, 15:00-16:00

Discussion Room, Newton Institute

Abstract

The study of wall-bounded turbulent flows has received great attention over the past few years as a result of high Reynolds number experiments conducted in new high Reynolds number facilities such as the Princeton “Superpipe”, the NDF facility in Chicago and the HRNBLWT at the University of Melbourne. These experiments have brought into question the fundamental scaling laws of the turbulence and mean flow quantities as well as revealed high Reynolds number phenomena, which make extrapolation of low Reynolds number results highly questionable. In this talk these issues will be reviewed and new results from the HRNBLWT and atmospheric surface layer on the salt-flats of Utah will be presented documenting unique high Reynolds number phenomena. Modelling of these flows, using attached eddy hypothesis will also be discussed.

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