Three-dimensional Numerical Simulation and Optimization of Steam Turbine Blade
[1]ZHOU Jun-jie,WANG Mei-ling,GUO Peng-fei,et al.Three-dimensional Numerical Simulation and Optimization of Steam Turbine Blade[J].Journal of Zhengzhou University (Engineering Science),2015,36(01):49-53.[doi:10.3969/j.issn.1671-6833.2015.01.012]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
36
Number of periods:
2015 01
Page number:
49-53
Column:
Public date:
2015-01-10
- Title:
- Three-dimensional Numerical Simulation and Optimization of Steam Turbine Blade
- Keywords:
- steam turbine; blade; aerodynamic performance; numerical simulation
- CLC:
- TK26
- Abstract:
- The three-dimensional numerical simulation and optimization of the last stage of a 25 MW condensa-ble steam turbine are conducted by using ANSYS Workbench,a platform of analysis system specially for therotating machinery. The results show that the modified blade has a better pressure coefficient distribution,re-duces the differential pressure distribution of blade surface,effectively controls the radial secondary flow los-ses.Total pressure loss coefficient is reduced,and the average total pressure loss coefficient is reduced by 1% . Isentropic efficiency increases from 92. 099 % to 93.157 % . After optimization,the aerodynamic per-formance of the blade increases obviously,the energy loss in the blade is reduced and the efficiency of steamturbine increases.
- References:
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