| 透平静叶安装节距误差对级性能影响的数值研究 |
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| 引用本文： | 陈江,季路成.透平静叶安装节距误差对级性能影响的数值研究[J].工程热物理学报,2005,26(Z1):69-72. |
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| 作者姓名： | 陈江 季路成 |
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| 作者单位： | 1. 北京航空航天大学能源与动力工程学院,北京,100083
2. 中国科学院工程热物理研究所,北京,100080 |
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| 摘 要： | 数值研究了蒸汽透平静叶节距变化对级性能影响。选取典型高压透平级,通过增、减静叶数改变静叶节距,分别对原型(A)、静叶部分透光(B)、静叶完全透光(C)和静叶节距减小(D)四种设计情况进行了全三维定常计算分析,获取了透平静叶节距变化对级性能影响的认识,讨论了蒸汽透平叶片设计中的“无透光”工程准则,从而为处理静叶节距变化这一工程问题提供依据。
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| 关 键 词： | 蒸汽透平 叶轮机 数值计算 |
| 文章编号： | 0253-231X(2005)Suppl.-0069-04 |
| 修稿时间： | 2005年3月28日 |
NUMERICAL INVESTIGATIONS ABOUT THE INFLUENCE OF CHANGING STATOR SOLIDITY ON STEAM TURBINE STAGE PERFORMANCE |
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| CHEN Jiang,JI Lu-Cheng.NUMERICAL INVESTIGATIONS ABOUT THE INFLUENCE OF CHANGING STATOR SOLIDITY ON STEAM TURBINE STAGE PERFORMANCE[J].Journal of Engineering Thermophysics,2005,26(Z1):69-72. |
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| Authors: | CHEN Jiang JI Lu-Cheng |
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| Abstract: | Numerical investigations about the influence of changing stator solidity on the steam turbine stage performance are presented. One high pressure steam turbine stage is selected as research object. The stator solidity is changed via altering stator blade number. Four cases with different stator solidity, namely baseline design(A); smaller solidity with part light through(B); smallest solidity with complete light through(C); biggest solidity(D), are simulated with a well validated in-house three-dimensional CFD code. Understanding about the influence of changing stator solidity on steam turbine stage performance is obtained, and also the engineering design criteria named "no light through" is discussed. |
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| Keywords: | steam turbine turbomachinery numerical calculation |
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