Skin friction topology in a region enclosed by penetrable boundary

Skin friction topology in a region enclosed by penetrable boundary High-resolution skin friction fields in separated flows on a low-aspect-ratio rectangular wing are obtained by using quantitative global skin friction diagnostics based on surface luminescent oil visualizations. The topological features like the isolated singular points and the boundary switch points in regions enclosed by penetrable boundaries are identified. The conservation law given by the Poincare–Bendixson index formula for the numbers of the isolated singular points and the boundary switch points is used as a general approach to analyze the topological structure of a skin friction field in a singly connected region enclosed by a penetrable boundary in the separated flows. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Skin friction topology in a region enclosed by penetrable boundary

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Publisher
Springer Journals
Copyright
Copyright © 2011 by Springer-Verlag
Subject
Engineering; Engineering Thermodynamics, Heat and Mass Transfer; Engineering Fluid Dynamics; Fluid- and Aerodynamics
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-011-1171-6
Publisher site
See Article on Publisher Site

Abstract

High-resolution skin friction fields in separated flows on a low-aspect-ratio rectangular wing are obtained by using quantitative global skin friction diagnostics based on surface luminescent oil visualizations. The topological features like the isolated singular points and the boundary switch points in regions enclosed by penetrable boundaries are identified. The conservation law given by the Poincare–Bendixson index formula for the numbers of the isolated singular points and the boundary switch points is used as a general approach to analyze the topological structure of a skin friction field in a singly connected region enclosed by a penetrable boundary in the separated flows.

Journal

Experiments in FluidsSpringer Journals

Published: Jul 26, 2011

References

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