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Visualization of vortex breakdown structures

  • Shapes and structures of vortex breakdown phenomena in rotating fluids are visualized. We investigate the flow in a cylindrical container and in a cone between two spherical surfaces. The primary swirling flow is induced by the rotating upper disk in the cylindrical case and by the lower boundary in the spherical case. The upper surface can be fixed with a no slip condition or can be a stress-freeShapes and structures of vortex breakdown phenomena in rotating fluids are visualized. We investigate the flow in a cylindrical container and in a cone between two spherical surfaces. The primary swirling flow is induced by the rotating upper disk in the cylindrical case and by the lower boundary in the spherical case. The upper surface can be fixed with a no slip condition or can be a stress-free surface. Depending on these boundary conditions and on the Reynolds number novel structures of recirculation zones are realized. Experiments are done to visualize the topological structure of the flow and to determine their existence range as function of the geometry and rotation rate. A comparison between the experimental and theoretical approach shows a good agreement in respect to the topological structures of the flows.show moreshow less

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Metadaten
Document Type:Article (reviewed)
Zitierlink: https://opus.hs-offenburg.de/3471
Bibliografische Angaben
Title (English):Visualization of vortex breakdown structures
Author:Karl BühlerStaff MemberGND
Year of Publication:1999
Publisher:Springer
First Page:25
Last Page:30
Parent Title (English):Journal of Visualization
Volume:2
Issue:1
ISSN:1875-8975
DOI:https://doi.org/10.1007/BF03182548
Language:English
Inhaltliche Informationen
Institutes:Fakultät Maschinenbau und Verfahrenstechnik (M+V)
Institutes:Bibliografie
GND Keyword:Fließverhalten; Visualisierung; Wirbel <Physik>; Zirkulation
Formale Angaben
Open Access: Closed Access 
Licence (German):License LogoUrheberrechtlich geschützt