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 evolutionary 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 computational fluid dynamics analysis, and a two-dimensional Navier-Stokes solver with a low-Re turbulence model in order to evaluate the performance. Some interesting aspects, for example, a double shock system, an early transition, and a redistribution of aerodynamic loading on blade surface, observed in the optimized airfoil, are discussed. The increased performance of the optimized blade has been confirmed by detailed experimental investigation, using conventional probes, hotfilms, and L2F system.
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October 2006
Technical Papers
A Study of Advanced High-Loaded Transonic Turbine Airfoils
Toyotaka Sonoda,
Toyotaka Sonoda
Honda R&D Co. Ltd.,
Aircraft Engine R&D Center
, Saitama 351-0193, Japan
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Toshiyuki Arima,
Toshiyuki Arima
Honda R&D Co. Ltd.,
Wako Research Center
, Saitama 351-0193, Japan
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Markus Olhofer,
Markus Olhofer
Honda Research Institute Europe GmbH
, 63073 Offenbach, Germany
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Bernhard Sendhoff,
Bernhard Sendhoff
Honda Research Institute Europe GmbH
, 63073 Offenbach, Germany
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Friedrich Kost,
Friedrich Kost
Institute of Propulsion Technology,
German Aerospace Center (DLR)
, D-37073 Goettingen, Germany
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P.-A. Giess
P.-A. Giess
Institute of Propulsion Technology,
German Aerospace Center (DLR)
, D-37073 Goettingen, Germany
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Toyotaka Sonoda
Honda R&D Co. Ltd.,
Aircraft Engine R&D Center
, Saitama 351-0193, Japan
Toshiyuki Arima
Honda R&D Co. Ltd.,
Wako Research Center
, Saitama 351-0193, Japan
Markus Olhofer
Honda Research Institute Europe GmbH
, 63073 Offenbach, Germany
Bernhard Sendhoff
Honda Research Institute Europe GmbH
, 63073 Offenbach, Germany
Friedrich Kost
Institute of Propulsion Technology,
German Aerospace Center (DLR)
, D-37073 Goettingen, Germany
P.-A. Giess
Institute of Propulsion Technology,
German Aerospace Center (DLR)
, D-37073 Goettingen, GermanyJ. Turbomach. Oct 2006, 128(4): 650-657 (8 pages)
Published Online: March 1, 2004
Article history
Received:
October 1, 2003
Revised:
March 1, 2004
Citation
Sonoda, T., Arima, T., Olhofer, M., Sendhoff, B., Kost, F., and Giess, P. (March 1, 2004). "A Study of Advanced High-Loaded Transonic Turbine Airfoils." ASME. J. Turbomach. October 2006; 128(4): 650–657. https://doi.org/10.1115/1.2221325
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