A CFD APPROACH TO FLUID DYNAMIC OPTIMUM DESIGN OF STEAM TURBINE STAGES WITH STATOR AND ROTOR BLADES

被引：0
|
作者：
Yuan, Xin [1 ]
Tanuma, Tadashi [1 ]
Zhu, Xiaofeng [1 ]
Lin, Zhirong [1 ]
Nomura, Daisuke [1 ]
机构：
[1] Tsinghua Univ, Minist Educ, Key Lab Thermal Sci & Power Engn, Beijing 100084, Peoples R China
来源：
PROCEEDINGS OF THE ASME TURBO EXPO 2010: TURBOMACHINERY: AXIAL FLOW FAN AND COMPRESSOR AERODYNAMICS DESIGN METHODS, AND CFD MODELING FOR TURBOMACHINERY, VOL 7, PTS A-C | 2010年
关键词：
SHAPE OPTIMIZATION;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
An advanced aerodynamic design optimization system for steam turbine stages considering rotor blade tip leakage and blade end-wall non-axis-symmetric contouring has been developed. Using this system, fluid dynamic optimizations were carried out for a steam turbine stage with stator and rotor blades. The system includes parametric modeling of blade and end-wall contouring, evaluation system with in-house or package CFD software and optimization strategy module. The designs of rotor blade and hub end-wall surface in a typical large-scale high-pressure steam turbine stage were optimized in order to know this design optimization impact on enhancing the stage efficiency. Results show that: from the current well designed high pressure steam turbine stage, the demonstrated efficiency enhancement with the present optimum design is around 0.2% under consideration of rotor tip leakage. Design cycle could be greatly shortened by parallel optimization algorithm and cluster PC, and especially four days could be sufficient for an optimization with one thousand iterations on 20 CPUs of 2.0G cluster PC.
引用
收藏
页码：2209 / 2218
页数：10
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