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Turbulent pipe flow at extreme Reynolds numbers. | LitMetric

Turbulent pipe flow at extreme Reynolds numbers.

Phys Rev Lett

Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08540, USA.

Published: March 2012

Both the inherent intractability and complex beauty of turbulence reside in its large range of physical and temporal scales. This range of scales is captured by the Reynolds number, which in nature and in many engineering applications can be as large as 10(5)-10(6). Here, we report turbulence measurements over an unprecedented range of Reynolds numbers using a unique combination of a high-pressure air facility and a new nanoscale anemometry probe. The results reveal previously unknown universal scaling behavior for the turbulent velocity fluctuations, which is remarkably similar to the well-known scaling behavior of the mean velocity distribution.

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Source
http://dx.doi.org/10.1103/PhysRevLett.108.094501DOI Listing

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