| 一种槽道式处理机匣设计及实验验证 |
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| 引用本文： | 刘历玮,樊琳,刘火星,宁方飞.一种槽道式处理机匣设计及实验验证[J].航空动力学报,2008,23(9):1713-1717. |
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| 作者姓名： | 刘历玮 樊琳 刘火星 宁方飞 |
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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, 北京 100191 |
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| 基金项目： | 法国Snecma-北航国际合作研究项目，国家重点基础研究发展计划(973计划) |
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| 摘 要： | 对实壁机匣的实验转子进行了定常雷诺平均N-S方程(RANS)模拟,考察了实验转子叶尖端区流动状况,并基于转子叶尖端区在设计状态和近失速状态下的若干主要流动特征设计了一个带气室的轴向斜槽式处理机匣.在高速压气机试验台上对处理机匣的性能测量结果表明,设计的处理机匣有很好的扩稳效果,效率损失也可接受.这说明通过对实壁机匣的转子其流动结构的分析和把握、进而完成处理机匣的设计在一定程度上有可行性.
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| 关 键 词： | 航空发动机 轴流压气机 处理机匣 失速裕度 效率损失 |
| 收稿时间： | 2007/9/17 0:00:00 |
| 修稿时间： | 2007/11/28 0:00:00 |
Design of a slot-type casing treatment and its experimental validation |
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| LIU Li-wei,FAN Lin,LIU Huo-xing and NING Fang-fei.Design of a slot-type casing treatment and its experimental validation[J].Journal of Aerospace Power,2008,23(9):1713-1717. |
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| Authors: | LIU Li-wei FAN Lin LIU Huo-xing and NING Fang-fei |
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| Affiliation: | School of Jet Propulsion, Beijing University of Astronautics and Aeronautics, Beijing 100191, China |
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| Abstract: | Steady Reynolds-averaged Navier-Stokes(RANS) of a test rotor with solid casing was simulated,and the flow field near the rotor tip was investigated.Based on several predominant flow features at the blade tip region as the rotor is operate at design state and near stall state respectively,a back chambered axial skewed-slot casing treatment was designed.The performance of the casing was then validated experimentally on a high speed test rig,showing that this casing treatment has notable capability in improving the stall margin of the test rotor,whilst the loss of efficiency is acceptable.This illustrates that the design of the casing treatment could be feasible on the basis of the rotor tip flow field with the solid casing. |
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| Keywords: | aero-engine axial compressor casing treatment surge margin efficiency loss |
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