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Aerodynamic Optimization Based on Approximation Method for Turbine Blade

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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.

Affiliations: 1: Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an, 710072, China, Liaoning Key Lab of Intelligent Information Processing, Dalian University, Dalian, 116622, China;, Email: gaohshan@nwpu.edu.cn; 2: Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an, 710072, China; 3: Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an, 710072, China, Liaoning Key Lab of Intelligent Information Processing, Dalian University, Dalian, 116622, China

10.1163/157361108785963055
/content/journals/10.1163/157361108785963055
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/content/journals/10.1163/157361108785963055
2008-09-01
2016-12-11

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