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| 轮毂封严气体对高压涡轮二次流动的影响 | |
| 引用本文： | 周杨,牛为民,邹正平,刘火星,李维.轮毂封严气体对高压涡轮二次流动的影响[J].推进技术,2006,27(6):515-520. |
| 作者姓名： | 周杨 牛为民 邹正平 刘火星 李维 |
| 作者单位： | 1. 北京航空航天大学,航空发动机气动热力重点实验室,北京,100083 2. 哈尔滨东安集团航空发动机研究所,黑龙江,哈尔滨,150066 3. 中国航空动力机械研究所,湖南,株洲,412002 |
| 基金项目： | 国家自然科学基金;航空基础科学基金 |
| 摘 要： | 1引言目前,国内外对封严冷气掺混已有一定的研究,宾夕法利亚大学的Mclean研究了转静子封严腔冷气孔位置以及冷气流量等对主流的影响,发现了很小一部分冷气也会对涡轮的性能和涡轮出口条件产生很大的影响1,2]。Jakoby等人对涡轮内部转静子封严腔和主流通道中的流动进行了数值模 |
| 关 键 词： | 封严 高压涡轮 二次流动 数值仿真 |
| 文章编号： | 1001-4055（2006）06-0515-06 |
| 收稿时间： | 2005-11-24 |
| 修稿时间： | 2006-03-13 |
Effects of coolant injection from rim seals on secondary flow in a high-pressure turbine |
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| ZOU Zheng-ping,NIU Wei-min,ZOU Zheng-ping,LIU Huo-xing and LI Wei.Effects of coolant injection from rim seals on secondary flow in a high-pressure turbine[J].Journal of Propulsion Technology,2006,27(6):515-520. | |
| Authors: | ZOU Zheng-ping NIU Wei-min ZOU Zheng-ping LIU Huo-xing and LI Wei |
| Abstract: | The flow field and secondary flow in a high-pressure turbine with and without coolant injection from rim seals were studied numerically. The effects of coolant injection with four different cooling air mass flow percentage at 1.4% , 2. 5% , 3.75% and 4. 5% , respectively was investigated. The results suggest that the cooling air plays a role in turbine performance and main structure of flow field. It decreases turbine efficiency. The negative angle of incidence increases as the rate of the cooling air increases. The negative angle of incidence can cause flow separation. |
| Keywords: | Sealing High-pressure turbine Secondary flow Numerical simulation |
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