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Some examples of stability mode persistence and change in vortex structure formation

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posted on 2014-02-28, 11:51 authored by Aldo Rona, Stephen J. Garrett, J. Paul Gostelow, David S. Adebayo
Stable vortex structures have been observed in a range of flows of industrial relevance, such as flows over conical aerodynamic fairings, turbine blades with cylindrical leading edges, and in between coaxial cylinders. The persistence of these structures over a defined flight envelope appears to be a common theme among these applications. Regression of experimental results over variations in geometry and inflow conditions have guided the development of predictive methods for these structures, based on asymptotic perturbation methods of inviscid, incompressible baseline model flows. Three examples of flows generating similar near-wall striations indicate a possible common driver, involving streamwise vorticity. This encourages the development of the current models towards a generalised representation for this class of flows. [Taken from introduction]

History

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Engineering

Source

European Turbulence Conference 14 (ETC 14), ENS Lyon, France

Version

  • AM (Accepted Manuscript)

Copyright date

2013

Available date

2014-02-28

Publisher version

http://etc14.ens-lyon.fr/ http://www2.le.ac.uk/departments/engineering/people/academic-staff/aldo-rona/publications/conference-papers/conference-papers

Temporal coverage: start date

2013-09-01

Temporal coverage: end date

2013-09-04

Language

en

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