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Erschienen in: Experiments in Fluids 6/2011

01.12.2011 | Research Article

Skin friction topology in a region enclosed by penetrable boundary

verfasst von: Tianshu Liu, Sudesh Woodiga, Tian Ma

Erschienen in: Experiments in Fluids | Ausgabe 6/2011

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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.
Vorheriger Artikel Phase-resolved flow characteristics between two shrouded co-rotating disks
Nächster Artikel Development of a turbulent boundary layer after a step from smooth to rough surface

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Metadaten
Titel
Skin friction topology in a region enclosed by penetrable boundary
verfasst von
Tianshu Liu
Sudesh Woodiga
Tian Ma
Publikationsdatum
01.12.2011
Verlag
Springer-Verlag
Erschienen in
Experiments in Fluids / Ausgabe 6/2011
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI
https://doi.org/10.1007/s00348-011-1171-6

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