Authors
G Rigas, AR Oxlade, AS Morgans, JF Morrison
Publication date
2014/9
Journal
Journal of Fluid Mechanics
Volume
755
Pages
R5
Publisher
Cambridge University Press
Description
The coherent structures of a turbulent wake generated behind a bluff three-dimensional axisymmetric body are investigated experimentally at a diameter-based Reynolds number of . In a rotating reference frame, the shedding preserves the reflectional symmetry and is linked with a reflectionally symmetric mean pressure distribution on the base. Due to a slow rotation of the symmetry plane of the turbulent wake around the axis of the body, statistical axisymmetry is recovered in the time average. The ratio of the time scales associated with the slow rotation of the symmetry plane and the vortex shedding is of order 100.
Total citations
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Scholar articles
G Rigas, AR Oxlade, AS Morgans, JF Morrison - Journal of Fluid Mechanics, 2014