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A Study of Advanced High Loaded Transonic Turbine Airfoils

Sonoda, T. and Arima, T. and Olhofer, M. and Sendhoff, B. and Kost, F. and Gieß, P.-A. (2004) A Study of Advanced High Loaded Transonic Turbine Airfoils. In: Poceedings of ASME Turbo Expo 2004 Power for Land, Sea and Air, GT2004-53773. ASME Turbo Expo 2004, Vienna, Austria, 14-17 June 2004, Austria.

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Abstract

The development of high performance turbine airfoils has been investigated under the condition of a supersonic exit Mach number. In order to obtain a new aerodynamic design concept for a high loaded turbine rotor blade, we employed an evolutionary algorithm for numerical optimization. The target of the optimization method, which is called evolution strategy (ES), was the minimization of the total pressure loss and the deviation angle. The optimization process includes the representation of the airfoil geometry, the generation of the grid for a blade-to-blade CFD analysis, and a 2D Navier-Stokes solver with a low-Re k-ƒÕ turbulence model in order to evaluate the performance. Some interesting aspects, for example, a double shock system and an early transition observed in the optimized airfoil are discussed. The increased performance of the optimized blade has been confirmed by detailed experimental investigation, using conventional probes, hot films and L2F system.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2004,
Title:A Study of Advanced High Loaded Transonic Turbine Airfoils
Authors:
AuthorsInstitution or Email of Authors
Sonoda, T.HONDA R&D Co. Ltd., Japan
Arima, T.HONDA R&D Co. Ltd., Japan
Olhofer, M.HONDA Research Institute Europe GmbH, Germany
Sendhoff, B.HONDA Research Institute Europe GmbH, Germany
Kost, F.UNSPECIFIED
Gieß, P.-A.UNSPECIFIED
Date:2004
Journal or Publication Title:Poceedings of ASME Turbo Expo 2004 Power for Land, Sea and Air
Volume:GT2004-53773
Editors:
EditorsEmail
ASME, UNSPECIFIED
Status:Published
Keywords:Turbomachinery, Turbine, Aerodynamics, Transonic Flow, Heat Transfer, Windtunnel, Cascade, Measurement Techniques, L2F-measurement, Hot film
Event Title:ASME Turbo Expo 2004, Vienna, Austria, 14-17 June 2004
Event Location:Austria
Event Type:international Conference
Organizer:ASME
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Turbine Technologies
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 13:34

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