长短叶片混流式水轮机转轮的三维几何建模  

3D Geometry Modeling of Francis Turbine Runner with Long and Short Blades

作　　者：王宏伟[1] 刘小兵[1] 曾永忠[1] 

机构地区：[1]西华大学能源与环境学院．四川成都610039

出　　处：《水电能源科学》2010年第3期121-123,共3页Water Resources and Power

基　　金：四川省教育厅重点实验室专项基金资助项目(2006ZD027);西华大学学科建设项目基金资助项目(SZD0412-08)

摘　　要：针对混流式水轮机叶片形状复杂、实体造型困难,以混流式转轮叶片二维木模图为基础,基于UG软件的三维建模功能,采用由点到线、线到面、面再到体的方法对混流式水轮机叶片进行三维造型。针对水轮机一次造型不光滑,采用类流线的方法在尽量保持原有型值点不变的前提下优化模型,最终建立了光滑精准的三维模型,为后期的流动性能预测、刚强度计算分析等提供了条件。Aiming at the complexity of blade shape and the difficulty of solid modeling for Francis turbine, a new method is proposed to establish the 3D modeling of blade on the basis of 2D wood pattern drawing of Francis turbine blade by means of UG software to draw lines from points, draw surfaces from lines. The method of similar streamline is proposed to handle the unsmooth issue on blade modeling. Under the precondition of unchanged the date points of blade, the smooth and accurate blade model is built to provide conditions for following performance forecast of flow and calculation analysis of rigid strength.

关 键 词：混流式水轮机 长短叶片 三维建模 类流线 优化 

分 类 号：TV734.1[水利工程—水利水电工程] TK733.1[交通运输工程—轮机工程]