基于Bezier曲线法对径流式涡轮机动叶的设计  

Design of the Turbine Rotor Blade Based on Bezier Curve Method

作　　者：李军[1] 蒋睿[1] 

机构地区：[1]重庆交通大学机电与汽车工程学院,重庆400074

出　　处：《重庆交通大学学报（自然科学版）》2013年第3期502-505,共4页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：重庆市教委自然科学基金项目(KJ090408);重庆市教委项目(0903070)

摘　　要：根据叶轮初步设计公式,结合Bezier曲线构造方法依靠NUMECA软件Design3D模块以径流向心式涡轮机效率0.5为目标值,对叶轮子午面型线以及动叶型线进行设计。并通过NUMECA软件对所设计的叶片以及子午流面进行流体计算,得出了符合效率目标值的叶型和子午流面参数,以及子午流面的绝对温度和绝对压力的分布,提出了以径流向心式涡轮机效率为目标值,结合Bezier曲线构造法的叶片型线和子午流面型线的设计方法。According to the preliminary design formula of turbine and Bezier curve construction method,the meridian surface shape and the blade profile is designed by NUMECA software Design3D module,which takes the runoff radial-inward turbine efficiency of 0.5 as the target value.Hydrodynamic mechanics calculation is carried out on the blade and the meridian surface,which is designed on the basis of the NUMECA software.The parameters of the blade type and the efficiency target value are obtained,and the distribution of the absolute temperature and absolute pressure of medicinal surface is also obtained.The runoff radial-inward turbine efficiency is taken as the target value,and the design methods of blade profile and medicinal surface line is proposed,combining with Bezier curve construction method.

关 键 词：BEZIER曲线 子午流面 涡轮机 Numeca 

分 类 号：U464.11+5[机械工程—车辆工程]