| 超临界航空煤油喷射到大气环境的喷射特性 |
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| 引用本文： | 梁获胜,高伟,许全宏,徐国强,林宇震.超临界航空煤油喷射到大气环境的喷射特性[J].航空动力学报,2009,24(6):1258-1263. |
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| 作者姓名： | 梁获胜 高伟 许全宏 徐国强 林宇震 |
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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重点实验室,北京100191 |
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| 摘 要： | 用纹影系统对超临界RP-3航空煤油喷射到大气环境中的喷射特性进行了试验研究.在纹影照片中可以看出喷嘴出口下游产生了桶形激波、马赫盘和斜激波,射流近场结构与高度欠膨胀空气射流非常相似.测试结果表明马赫盘的位置随着对比压力的增大而增大,对比温度对马赫盘位置的影响不大;马赫盘的直径随着对比温度的升高而减小,随着对比压力的增大而增大;射流的喷射长度随着对比压力的增大而增大,随着对比温度的升高而减小.
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| 关 键 词： | 超临界 RP-3航空煤油 喷射特性 马赫盘 |
| 收稿时间： | 5/29/2008 5:14:30 PM |
| 修稿时间： | 12/9/2008 5:12:18 PM |
Injection characteristics of the supercritical jet fuel injected into the atmospheric environment |
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| LIANG Huo-sheng,GAO Wei,XU Quan-hong,XU Guo-qiang and LIN Yu-zhen.Injection characteristics of the supercritical jet fuel injected into the atmospheric environment[J].Journal of Aerospace Power,2009,24(6):1258-1263. |
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| Authors: | LIANG Huo-sheng GAO Wei XU Quan-hong XU Guo-qiang and LIN Yu-zhen |
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| Institution: | National Key Laboratory on Aero-Engines;School of Jet Propulsion;Beijing University of Aeronautics and Astronautics;Beijing 100191;China |
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| Abstract: | The injection characteristics of supercritical RP-3 aviation kerosene injected into a quiescent atmospheric environment were studied using schlieren system.The jet generated a barrel shaped wave,Mach disk and reflected shock wave in the downstream of the nozzle exit,with the structure of the jet similar to highly underexpanded air jet.The test results indicate that the axial location of the Mach disk increases with the increasing reduced pressure,however,the reduced temperature almost has little effect on t... |
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| Keywords: | supercritical RP-3 aviation kerosene injection properties Mach disk |
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