| 空心旋转液体射流初始阶段运动规律的研究 |
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| 引用本文： | 史绍熙,林玉静,杨延相,杜青,张平,何长安.空心旋转液体射流初始阶段运动规律的研究[J].工程热物理学报,2000,21(2):242-246. |
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| 作者姓名： | 史绍熙 林玉静 杨延相 杜青 张平 何长安 |
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| 作者单位： | 天津大学燃烧学国家重点实验室,天津,300072 |
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| 摘 要： | 应用质量守恒定律和动量守恒定律，建立了描述空心旋转液体射流初始阶段运动的非线 性常微分方程组；该方程组可以用数值方法方便地求解。理论计算结果与实验拍摄到的射流照片吻 合很好。本结果表示射流受挑动失稳破碎成液滴前的最基本运动状态，是进一步从理论上研究空心 旋转射流破碎雾化机理的基础。
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| 关 键 词： | 旋流喷嘴 初始阶段 空心旋转射流 |
| 文章编号： | 0253-23lX(2000)02-0242-05 |
| 修稿时间： | 1999-12-09 |
A STUDY ON THE MOTION OF A HOLLOW SWIRLING LIQUID JET AT ITS INITIAL STAGE |
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| SHI Shaoxi,LIN Yujing,YANG Yanxiang,DU Qing,ZHANG Ping,HE Chang'an.A STUDY ON THE MOTION OF A HOLLOW SWIRLING LIQUID JET AT ITS INITIAL STAGE[J].Journal of Engineering Thermophysics,2000,21(2):242-246. |
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| Authors: | SHI Shaoxi LIN Yujing YANG Yanxiang DU Qing ZHANG Ping HE Chang'an |
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| Institution: | SHI Shaoxi
,LIN Yujing
,YANG Yanxiang
,DU Qing
,ZHANG Ping
,HE Chang'an
(National Engine Combustion Laboratory Tianjin Universiry, Tianjin 300072, China) |
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| Abstract: | The motion of a hollow swirling liquid jet at its initial stage has been studied theoretically. A set of non-linear differential equations describing the motion of the hollow jet is obtained using the equations of conservation of mass and conservation of momentum. The equations can be conveniently solved by numerical method. An experimental study on the hollow swirling liquid jet has also been conducted. The experimental result agrees well with that of the theoretical analysis. The results can be considered as the basic jet flow pattern from a swirl nozzle before the breakup of the swirling liquid jet due to its instability, and may be regarded as a basis for further study of this problem. |
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| Keywords: | swirl nozzle initial stage hollow swirling jet |
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