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Secondary flow control and streamwise vortices formation

Doerffer, P. and Amecke, J. (1994) Secondary flow control and streamwise vortices formation. ASME Turbo Expo'94, Den Haag, 13.-16.6.1994/ASME Paper 94-GT-376.

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Abstract

The structure of a secondary flow in a linear turbine cascade has been investigated. In order to analyse streamwise vortices configuration and to control their formation two types of side wall boundary layer fences have been applied. Results obtained proved that the streamwise fence reduces significantly spanwise extent of secondary flows. Transverse fence has no such effect but causes very significant change of location and the losses level in a passage vortex. Presented results cast some new light on the contribution of passage vortex, horse shoe vortex and a shear plain in between, to the losses maximum where these flow elements are in direct neighbourhood.

Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=1994,
Title:Secondary flow control and streamwise vortices formation
Authors:
AuthorsInstitution or Email of Authors
Doerffer, P.UNSPECIFIED
Amecke, J.UNSPECIFIED
Date:1994
Page Range:pp. 1-10
Status:Published
Keywords:Sekundärströmungen, Turbinengitter, Transsonische Strömungen, Wirbel
Event Title:ASME Turbo Expo'94, Den Haag, 13.-16.6.1994/ASME Paper 94-GT-376
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L TT - Triebwerkstechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik > Institut für Experimentelle Strömungsmechanik
Deposited By: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:07

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