| 基于VOF方法模拟离心式喷嘴内部流动过程 |
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| 引用本文： | 刘娟,李清廉,王振国,吴海燕.基于VOF方法模拟离心式喷嘴内部流动过程[J].航空动力学报,2011,26(9):1986-1994. |
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| 作者姓名： | 刘娟 李清廉 王振国 吴海燕 |
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| 作者单位： | 国防科技大学航天与材料工程学院,长沙,410073 |
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| 基金项目： | 国家自然科学基金(10802095) |
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| 摘 要： | 基于两相界面追踪方法 VOF（volume of fluid）模拟了离心式喷嘴内部的流动过程,得到了液相填充喷嘴内部的过程,初始时刻,气液界面出现褶皱,随着进入液体的增多,褶皱逐渐消失;着重分析了喷嘴各个部位速度、压力分布,由于气液两相的存在,喷嘴内部流场变得异常复杂,流场分布不能用单相流的模式分析,总压损失大部分存在...
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| 关 键 词： | 流体体积法 离心式喷嘴 总压损失 液膜厚度 雾化 |
| 收稿时间： | 2010/10/18 0:00:00 |
| 修稿时间： | 2010/12/15 0:00:00 |
Numerical simulation of flow field in pressure-swirl injector based on VOF interface tracking method |
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| LIU Juan,LI Qing-lian,WANG Zhen-guo and WU Hai-yan.Numerical simulation of flow field in pressure-swirl injector based on VOF interface tracking method[J].Journal of Aerospace Power,2011,26(9):1986-1994. |
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| Authors: | LIU Juan LI Qing-lian WANG Zhen-guo and WU Hai-yan |
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| Institution: | College of Aerospace and Material Engineering, National University of Defense Technology, Changsha 410073, China;College of Aerospace and Material Engineering, National University of Defense Technology, Changsha 410073, China;College of Aerospace and Material Engineering, National University of Defense Technology, Changsha 410073, China;College of Aerospace and Material Engineering, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | Interface-tracking method volume of fluid (VOF) was used to simulate the flow process in pressure-swirl injector.The process of liquid phase filling injector was exhibited:pucker appears at first,then distinguishes with the increase of liquid.Velocity and pressure distribution were especially analyzed in different sections of injector.As both liquid and gas phase coexist in the injector,the flow field is highly complex.Total pressure loss lies mostly in the convergent and columned sections,so increasing convergent angle helps to reduce total pressure loss.Setting a divergent angle at injector exit can increase liquid phase velocity and reducing liquid sheet thickness can get better atomization finally. |
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| Keywords: | volume of fluid(VOF) pressure-swirl injector loss of total pressure liquid sheet thickness atomization |
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