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气泡雾化喷嘴液雾特性
Studies on spray characteristics of barbotaged atomizer

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文摘	为了研究静止空气中气泡雾化喷嘴的液雾特性，利用粒子多普勒分析仪（PDA）和Mie散射显示法，对气泡雾化喷嘴在水压2.5 MPa和3.4 MPa条件下，较宽气液比范围内的液雾的张角、粒度及速度分布进行了测量，分析了水压、气液比、两股射流相互作用对液雾的影响。结果表明，气泡对液体射流的雾化具有较大的增强作用，同时发现在一临界气液比（介于3% ～ 4%之间），当气液比达到临界值后，射流的雾化突然增强，且运行稳定。
其他语种文摘	The spray characteristics of barbotaged atomization in quiescent atmosphere by using Particle Dynamics Analyzer (PDA) and Mie-Scattering were experimentally investigated. The experiments were conducted in a wider gas/liquid mass ratio (GLR) and the water injection pressure 2.5MPa and 3.4MPa respectively. The major parameters of spray including velocity, drop size anil initial expansion angle were measured and their dependence on injection pressure, GLR and interaction of two sprays were analyzed. Results show that the drop size decreases and the initial expansion angle of the spray increases significantly with barbotaged atomiza-tion . It was found that there existed a critical GLR value around 3 % ~ 4 % , and the spray being enhanced abruptly and performed steady after the critical value reached.
来源	推进技术 ,2003,24(4):348-352 【核心库】
关键词	气泡 ; 雾化 ; 液雾特性 ; 超音速燃烧 ; 二相流
地址	中国科学院力学研究所, 北京, 100080
语种	中文
文献类型	研究性论文
ISSN	1001-4055
学科	航空
基金	国家自然科学基金国家杰出青年科学基金 ; 国家863计划
文献收藏号	CSCD:1213298

参考文献共 9 共1页

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引证文献 4 篇

1 王冬煤油射流在超声速燃烧室中的实验研究实验流体力学,2005,19(2):11-13
被引 5 次

2 刘静高速气流中横向液体射流雾化研究进展力学进展,2009,39(3):273-283
被引 11 次

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