| 考虑入口和出口容积效应的涡轮动力学模型 |
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| 引用本文： | 刘昆,张育林.考虑入口和出口容积效应的涡轮动力学模型[J].国防科技大学学报,2001,23(3):9-11. |
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| 作者姓名： | 刘昆 张育林 |
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| 作者单位： | 国防科技大学航天与材料工程学院, |
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| 基金项目： | 国家自然科学基金资助项目! (5 9886 0 0 3) |
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| 摘 要： | 建立了考虑涡轮入口和出口容积效应的涡轮动力学模型 ,利用该模型计算了燃气涡轮气瓶启动的动态响应过程 ,分析了影响涡轮动态特性的主要因素。计算结果表明 :涡轮前容积对涡轮入口压力和出口背压的过渡过程均有显著的影响 ,涡轮后容积对涡轮入口压力的过渡过程影响不大 ,对涡轮出口背压的影响显著。
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| 关 键 词： | 液体火箭发动机 涡轮 动力学模型 |
| 文章编号： | 1001-2486(2001)03-0009-03 |
| 收稿时间： | 2000/12/15 0:00:00 |
| 修稿时间： | 2000年12月15 |
A Gas Turbine's Dynamics Model Accounting Before-turbine and Post-turbine Capacity |
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| LIU Kun and ZHANG Yulin.A Gas Turbine''s Dynamics Model Accounting Before-turbine and Post-turbine Capacity[J].Journal of National University of Defense Technology,2001,23(3):9-11. |
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| Authors: | LIU Kun and ZHANG Yulin |
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| Affiliation: | College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China |
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| Abstract: | A dynamic model of gas turbine, which takes both before turbine and post turbine capacity into consideration, is developed. The dynamic behavior of gas turbines in start up by high pressure gas is calculated by using the model, and its principal influence factors are analyzed. The calculated results show that the before turbine capacity has notable influence on the transients of both entrance and exit pressures of the gas turbines, the post turbine capacity mostly affects the dynamic processes of the turbines' exit pressures, and has little influence on the turbines' entrance pressures. |
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| Keywords: | Liquid Propellant Rocket Engines Gas turbines Dynamic models |
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