摘要
为了提高涡轮叶片的设计效率,在分析已有涡轮叶片截面线参数化造型技术优缺点的基础上,基于B样条曲线实现了涡轮叶片截面线的参数化造型和参数化修改,并编写了叶片造型程序,实现了叶片流场模型的自动化生成。以某型号涡轮叶片为例,对其进行三维流场数值模拟,然后采用遗传算法和序列二次规划法算法的组合,以涡轮的气动效率为目标函数,对涡轮叶片进行了气动优化。算例结果表明文中所建立的涡轮叶片自动优化设计体系是可行的。
To improve the design efficiency of turbine blade, based on analyzing the advantages and disadvantages of the existing parameterized modeling of the turbine blade section curve, the paper actualized the parameterized modeling and parameterized modification of the section curve. The blade modeling was programmed and the flow flied calculation of blades was automatically modeled. 3D flow flied of blades was simulated, then aerodynamic optimization was carried out using the GA and SQA algorithms by taking the aerodynamic efficiency of turbine as the target. The result of the optimization indicated that the automatic design and optimization system of turbine blade modeled in this paper is feasible.
出处
《计算机仿真》
CSCD
2008年第10期27-30,共4页
Computer Simulation
关键词
涡轮叶片
参数化设计
样条
优化仿真
效率
Turbine blade
Parametric design
Spline
Optimization simulation
Efficiency
