正反问题数值解法相结合三维叶片的优化设计

OPTIMUM DESIGN OF THREE-DIMENSIONAL BLADES BY COMBINATION OF NUMERICAL METHODS FOR SOLVING DIRECT AND INVERSE PROBLEMS

本文讨论了叶轮机械中三维叶片的优化方法，并利用二维正反问题程序和三维Ｎ－Ｓ正问题程序作为工具，将二维叶型的改型与三维叶片的周向弯曲两种优化设计技术相结合，对工程应用中—实际叶片进行了改型优化。数值分析表明，取得了较好的优化效果。

The optimum design methods of three-dimensional blades were discussed in this paper. Using the codes of ZD direct and inverse problems and 3D N-S direct problem, a practical blade in engineering was improved by combination of two optimum design techniques that are revision of ZD blade profile and the circumferential curving of 3D blade. The better effect was achieved in numerical tests.