| 火箭发动机燃气射流喷水降噪研究 |
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| 引用本文： | 徐悦,周旭,张志成,陈钰,刘利宏.火箭发动机燃气射流喷水降噪研究[J].航空动力学报,2010,25(4):816-820. |
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| 作者姓名： | 徐悦 周旭 张志成 陈钰 刘利宏 |
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| 作者单位： | 中国人民解放军,总装备部工程设计研究总院,北京,100028 |
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| 基金项目： | 国家自然科学基金，中国博士后科学基金 |
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| 摘 要： | 采用有限体积法预估喷水对火箭燃气射流气动噪声的抑制程度.建立并求解了守恒的控制体的质量、动量和能量方程,得到了燃气和水掺混后的等效射流参数,分析了水和燃气的质量流率比对等效射流参数和降噪效果的影响.计算结果和试验数据的结果基本吻合.结果显示,当水和燃气的质量流率比超过一个临界值之后,降噪效率会降低.
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| 关 键 词： | 火箭发动机 射流噪声 有限体积法 等效射流参数 质量流率比 |
| 收稿时间： | 2009/4/16 0:00:00 |
| 修稿时间： | 8/16/2009 8:10:11 PM |
Reduction of rocket engine jet noise by water injection |
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| XU Yue,ZHOU Xu,ZHANG Zhi-cheng,CHEN Yu and LIU Li-hong.Reduction of rocket engine jet noise by water injection[J].Journal of Aerospace Power,2010,25(4):816-820. |
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| Authors: | XU Yue ZHOU Xu ZHANG Zhi-cheng CHEN Yu and LIU Li-hong |
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| Institution: | Center for Engineering Design and Research under the Headquarters of General Equipment |
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| Abstract: | A finite volume method is applied to determine rocket jet noise reduction due to water injection. Mass, momentum and energy equations based on the control volume were built and solved, and the equivalent jet parameters due to mix of the jet and water were obtained. The effect of the water to jet mass flow rate ratio on equivalent jet parameters and noise reduction was analyzed. The calculation results show satisfactory comparison with experimental data. The results indicate that the efficiency of noise reduction reduces when the mass flow rate ratio exceeds the critical value. |
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| Keywords: | rocket engine jet noise finite volume method equivalent jet parameter mass flow rate ratio |
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