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Aerodynamic Optimization Based on Approximation Method for Turbine Blade

GAO Hangshan (Department of Engineering Mechanics, Northwestern Polytechnical University, Xi’an, 710072, China)
HAN Yongzhi (Department of Engineering Mechanics, Northwestern Polytechnical University, Xi’an, 710072, China)
ZHANG Juan (Department of Engineering Mechanics, Northwestern Polytechnical University, Xi’an, 710072, China)
YUE Zhufeng (Department of Engineering Mechanics, Northwestern Polytechnical University, Xi’an, 710072, China)

Multidiscipline Modeling in Materials and Structures

ISSN: 1573-6105

Article publication date: 1 April 2008

Abstract

Based on aerodynamic analysis, an optimization method for the profiles of turbine blade is studied in this paper. This method is capable of addressing multiple objectives and constrains without relying on user input. A quintic polynomial is used to build the three‐dimensional blade model and a three dimensional Navier‐Stokes solver was used to solve the flow field around the turbine blade. The objective functions are the turbine aerodynamic efficiency and total pressure ratio. The optimization is completed with the K‐S function technique and accelerated by approximation technique. Finally, the proposed method is applied to optimizing a true blade to validate its accuracy and efficiency. The obtained result shows that the approximation method is more efficient and accurate than the conventional method.

Keywords

Citation

Hangshan, G., Yongzhi, H., Juan, Z. and Zhufeng, Y. (2008), "Aerodynamic Optimization Based on Approximation Method for Turbine Blade", Multidiscipline Modeling in Materials and Structures, Vol. 4 No. 4, pp. 385-392. https://doi.org/10.1163/157361108785963055

Publisher

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Emerald Group Publishing Limited

Copyright © 2008, Emerald Group Publishing Limited