Distinct Organizational States of Fully Developed Turbulent Pipe Flow



Dennis, David ORCID: 0000-0003-0214-7885 and Sogaro, Francesca
(2014) Distinct Organizational States of Fully Developed Turbulent Pipe Flow. Physical Review Letters, 113 (23).

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PhysRevLett.113.234501 - Published Version
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Abstract

Organizational states of turbulence are identified through novel analysis of large scale pipe flow experiments at a Reynolds number of 35 000. The distinct states are revealed by an azimuthal decomposition of the two-point spatial correlation of the streamwise velocity fluctuation. States with dominant azimuthal wave numbers corresponding to kθ=2,3,4,5,6 are discovered and their structure revealed as a series of alternately rotating quasistreamwise vortices. Such organizational states are highly reminiscent of the nonlinear traveling wave solutions previously identified at Reynolds numbers an order of magnitude lower.

Item Type: Article
Subjects: Q Science > QC Physics
Depositing User: Symplectic Admin
Date Deposited: 04 Dec 2014 17:18
Last Modified: 09 Jan 2021 08:51
DOI: 10.1103/PhysRevLett.113.234501
Publisher's Statement : Dennis, David J.C. and Sogaro, Francesca M., Physical Review Letters, 234501, 2014. Copyright 2014 by the American Physical Society.
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/2003202