摘要
提出了可考虑来流有旋、叶片厚度影响及转轮内部流动的三维性的反问题控制方程和计算方法。在这种方法中给定转轮轴面的环量分布，相应的流场和叶片由迭代计算得到。通过该方法和其他计算方法得到的结果的比较说明：该方法得到的叶片可实现事先给定的环量分布，得到的流场可用来进行计算空蚀系数，并为效率估算打下了基础。
A full three dimension inverse method of designing the Fransis runner is presented, which can take into account the circumferentially nonuniform flow, thickness of blade and rotational flow in the inlet of runner. In the method, distribution of circumferentially averaged swirl velocity V θR on the meridional geometry of runner is prescribed, the 3 D flow field and the corresponding blade shape are computed interatively. Comparing the results calculated by this method with those by the others shows the swirl velocity V θR on the blade computed by the method is more corresponding to the specified V θR and the 3 D flow field can be used to calculate the cavitation factor and estimate efficient. Therefore this method can rise the controllability of performance of the turbine runner in the process of designing.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1996年第7期41-45,共5页
Journal of Tsinghua University(Science and Technology)
基金
国家自然科学基金
关键词
有旋流动
可控性
水轮机
转轮
设计
inverse methods
full three dimension
rotationl flow
controllability
