| 锥形液膜Kevin-Helmholtz波不稳定性的实验研究 |
| |
| 引用本文： | 李继保,岳明,杨茂林.锥形液膜Kevin-Helmholtz波不稳定性的实验研究[J].航空动力学报,2007,22(3):337-341. |
| |
| 作者姓名： | 李继保 岳明 杨茂林 |
| |
| 作者单位： | 1. 北京航空航天大学,热动力工程研究所,北京,100083;沈阳发动机设计研究所,沈阳,110015
2. 北京航空航天大学,热动力工程研究所,北京,100083 |
| |
| 摘 要： | 采用PIV激光粒子测速仪获得了不同喷嘴液压差下锥形液膜子午截面的波动破碎图像.测得不同液压差下离心喷嘴锥形液膜的各项特性参数,如液膜半锥角、液膜破碎前长度等.研究了半锥角和液膜破碎前长度随液压差的变化规律.根据试验结果,总结出了计算C参数的经验公式,并利用此关系式求解色散方程,得到不同液压差下的液膜破碎点扰动波波长.预测值和实验结果进行了对比,对比发现:理论预测值的变化趋势同实验结果完全一致.
|
| 关 键 词： | 航空、航天推进系统 锥形液膜 色散方程 液膜破碎前长度 锥形液膜 不稳定性 实验 研究 wave instability research 完全 变化趋势 理论 发现 预测值 波长 扰动波 色散方程 求解 关系式 利用 经验公式 参数 |
| 文章编号： | 1000-8055(2007)03-0337-05 |
| 收稿时间： | 2006/3/23 0:00:00 |
| 修稿时间： | 2006年3月23日 |
Experimental research of instability of kevin-helmholtz wave on conical sheets |
| |
| LI Ji-bao,YUE Ming and YANG Mao-lin.Experimental research of instability of kevin-helmholtz wave on conical sheets[J].Journal of Aerospace Power,2007,22(3):337-341. |
| |
| Authors: | LI Ji-bao YUE Ming and YANG Mao-lin |
| |
| Institution: | Institute of Thermo-Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;Shenyang Aeroengine Research Institute, Shenyang 110015, China;Institute of Thermo-Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;Institute of Thermo-Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
| |
| Abstract: | The fragmenting images of meridian plane of conical liquid sheet under different nozzle pressure were obtained with Particle Image Velocimetry(PIV) system.Also,the characteristic parameters of conical liquid sheet with centrifugal nozzle,such as half-cone angle and breakup length,were measured under different liquid pressures.The variations of nozzle liquid pressure on half-cone angle and breakup length have been analyzed.The empirical formula of parameter C was obtained from experimental results,whereby the dispersion relation was solved to obtain the wavelength at breakup point of sheet under different pressures.The predicted results were compared with experimental results,finding that the trend of predicted data fully corresponds to the experimental results. |
| |
| Keywords: | aerospace propulsion system conical sheet dispersion relation breakup length |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
|
