| 透平级非设计工况气动性能的数值模拟 |
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| 引用本文： | 张宏武,袁新,叶大均.透平级非设计工况气动性能的数值模拟[J].工程热物理学报,2001,22(2):175-178. |
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| 作者姓名： | 张宏武 袁新 叶大均 |
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| 作者单位： | 1. 中国科学院工程热物理研究所,
2. 清华大学热能工程系, |
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| 基金项目： | 国家重点基础研究专项经费资助项目!（No．G1999022304） |
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| 摘 要： | 采用新型 ＬＵ隐式格式和改良型高阶 ＭＵＳＣＬ ＴＶＤ格式求解全三维雷诺平均的 Ｎａｖｉｅｒ－Ｓｔｏｋｅｓ方程和 ｑ－ｗ低雷诺数双方程湍流模型，对一台ＮＡＳＡ跨音单级透平在不同工况下的内部流场进行了详细的数值模拟，并与可能得到的实验结果进行了对比。总结了小流量工况下动叶内部流动的分离模式。
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| 关 键 词： | 非设计工况 分离流动 极限流线 LU隐式算法 |
| 文章编号： | 0253-231X(2001)02-0175-04 |
| 修稿时间： | 2000年11月29 |
NUMERICAL SIMULATION OF THE AERODYNAMIC PERFORMANCE OF A SINGLE-STAGE TURBINE AT OFF-DESIGN WORKING CONDITIONS |
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| ZHANG Hong-Wu,YUAN Xin,YE Da-Jun.NUMERICAL SIMULATION OF THE AERODYNAMIC PERFORMANCE OF A SINGLE-STAGE TURBINE AT OFF-DESIGN WORKING CONDITIONS[J].Journal of Engineering Thermophysics,2001,22(2):175-178. |
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| Authors: | ZHANG Hong-Wu YUAN Xin YE Da-Jun |
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| Abstract: | A new LU-type implicit scheme and an improved high resolution MUSCL TVD scheme were used to solve the full three-dimensional Reynolds-averaged Navier-Stokes equations and the q-w low-Reynolds-number two-equation turbulence model. The detail flow field in a NASA transonic single-stage turbine at different off-design working conditions was predicted by the present method. The computational results were compared with the available experimental data. The separation flow pattern in the rotor at low mass flow rate working condictions was concluded. |
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| Keywords: | off-design working conditions separation flow limited stream line LU implicit scheme |
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