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A Study of Advanced High-Loaded Transonic Turbine Airfoils

Sonoda, Toyotaka and Arima, Toshiyuki and Olhofer, Markus and Sendhoff, Bernhard and Kost, Friedrich and Gieß, Peter-Anton (2006) A Study of Advanced High-Loaded Transonic Turbine Airfoils. Journal of Turbomachinery, 128 (4), pp. 650-657.

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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-eps 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.

Item URL in elib:https://elib.dlr.de/48642/
Document Type:Article
Title:A Study of Advanced High-Loaded Transonic Turbine Airfoils
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Sonoda, ToyotakaHonda R&D Co. Ltd.UNSPECIFIED
Arima, ToshiyukiHonda R&D Co. Ltd.UNSPECIFIED
Olhofer, MarkusHonda Research Institute Europe GmbHUNSPECIFIED
Sendhoff, BernhardHonda Research Institute Europe GmbHUNSPECIFIED
Date:October 2006
Journal or Publication Title:Journal of Turbomachinery
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 650-657
EditorsEmailEditor's ORCID iD
Keywords:Turbine airfoils, transonic, design
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems (old)
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Turbine Technologies (old)
Location: Göttingen
Institutes and Institutions:Institute of Propulsion Technology > Turbine
Deposited By: Kost, Dr.rer.nat. Friedrich
Deposited On:04 Jun 2007
Last Modified:27 Apr 2009 13:48

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