PERFORMANCES OF 3D FLOW IN TURBINE STAGES

 UNDER DIFFERENT SHAPES OF MERIDIAN PLANE

Huang Diangui  Wang Yicheng

(Southeast University)

Li Jiuhua

(Jiangxi Province Test & Research Institute)

Liu Weining  Kou Lei

(Nanjing Turbine and Electric Machinery Co. Lid)

Abstract: Using the code of simulation for three-dimensional flow field in turbomachinery, the performances of 3D flow in turbine stages which is made by Nanjing Turbine and Electric Machinery Co. Ltd under different shapes of meridian plane are studied. It is found that proper negative curvature of meridian plane will be good for the reduction of the reaction and leakage at tip, and will improve the performances of aerodynamics in flow passage. The work is of value to design long blade for turbo-machinery.

Key words: Steam turbine  Meridian plane  Three-dimensional flow field
CLC No: TK26
国家自然科学基金和国家重点基础研究发展规划资助项目. Received 20000816, received in revised form 20001230