论文部分内容阅读
风扇转子气动优化设计是结合CFD、遗传算法和风扇特性的跨学科自动设计方法,这种设计较少依赖经验,能实现多目标和多设计参数组合的优化设计。先研究了四个关键技术:具有耗时少、计算较准确的叶片通道流场数值计算方法;具有良好寻优能力的数值最优化方法;三维叶片造型的参数化方法;以气动性能为目标的多目标函数构建方法。再将上述四个关键技术模块整合,构建简易的气动优化设计软件。三维叶片优化算例证明了该软件的设计能力,其设计结果较满意、设计效率较高、设计周期短。
The aerodynamic design of the fan rotor is an interdisciplinary, automated design approach that combines CFD, genetic algorithms, and fan characteristics. This design relies less on experience to enable optimal design of multi-objective and multi-design parameter combinations. Firstly, four key technologies are studied: numerical calculation method of flow field of blade passage with less time-consuming and more accurate calculation, numerical optimization method with good optimization ability, parametric method of three-dimensional blade modeling, aerodynamic performance Multi-objective function construction method. Then the above four key technology module integration, build simple aerodynamic optimization design software. The three-dimensional blade optimization example proves the design capability of the software. The design results are satisfactory, the design efficiency is high, and the design cycle is short.