| 利用端区射流调节涡轮流量的数值研究 |
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| 引用本文： | 闫晨,叶建,付超.利用端区射流调节涡轮流量的数值研究[J].燃气涡轮试验与研究,2011,24(2):9-12,4. |
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| 作者姓名： | 闫晨 叶建 付超 |
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| 作者单位： | 北京航空航天大学能源与动力工程学院航空发动机气动热力国家级重点实验室,北京,100191 |
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| 摘 要： | 采用三维数值模拟方法对在导叶端区射入第二股气流的涡轮流场进行计算,分析了各喷气参数(如喷气位置、角度、流量、马赫数以及总温总压等)对涡轮流量的影响规律.结果表明:涡轮流量对喷气位置相当敏感,精确的喉道位置有利于流量调节;与主流成钝角喷气对涡轮流量的调节效果较好,且喷气流量与涡轮流量的变化呈线性关系;喷气马赫数在亚声速范...
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| 关 键 词： | 端区射流 流量调节 涡轮 数值模拟 |
Numerical Investigation of Turbine Mass-flow Rate Regulation Using Endwall Injection |
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| YAN Chen,YE Jian,FU Chao.Numerical Investigation of Turbine Mass-flow Rate Regulation Using Endwall Injection[J].Gas Turbine Experiment and Research,2011,24(2):9-12,4. |
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| Authors: | YAN Chen YE Jian FU Chao |
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| Institution: | YAN Chen,YE Jian,FU Chao(National Key Laboratory of Science & Technology on Aero-Engine Aero-Thermodynamics,School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing 100191,China) |
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| Abstract: | Three-dimensional numerical simulations are conducted to investigate the flow field of a turbine with injection at stator endwall region,and the influence of slot jet parameters on turbine mass-flow rate are analyzed.Numerical results indicate that injection position has great influence on turbine mass-flow rate and accurate throat position is positive to regulate the turbine mass-flow rate;one can achieve better results of regulation by injecting gas with a direction comparatively opposite to the main flow... |
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| Keywords: | endwall injection mass-flow rate regulation turbine numerical simulation |
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