| 物体高速出水过程中的空化气液两相流流型研究 |
| |
| 作者姓名： | 施红辉 高聚瑞 贾会霞 胡俊辉 周杨洁 陈波 |
| |
| 作者单位： | 浙江理工大学机械与自动控制学院流体工程系, 杭州 310018 |
| |
| 基金项目： | 浙江省自然科学基金(LQ13A020005,LQ13A020006,Z1110123,LY16A020003)资助 |
| |
| 摘 要： | 实验研究超空泡航行体出水时的气液两相流流型.观察到当航行体靠近自由面时,超空泡的崩溃、再产生以及与自由面相互作用等复杂力学过程.对于崩溃超空泡,其尾部由透明变为阴影,可能与尾射流的产生有关;但一般而言,超空泡的崩溃是整体性的.基于FLUENT软件并采用VOF方法,对超空泡出水过程进行数值模拟,数值计算结果与实验结果吻合良好.
|
| 关 键 词： | 超空泡 高速物体出水 高速摄影 流型 |
| 收稿时间： | 2015-03-13 |
| 修稿时间： | 2015-06-01 |
Cavitating gas-liquid two-phase flow pattern in water exit of a high-speed body |
| |
| Authors: | SHI Honghui GAO Jurui JIA Huixia HU Junhui ZHOU Yangjie CHEN Bo |
| |
| Institution: | Department of Fluids Engineering, College of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou 310018, China |
| |
| Abstract: | The flow patterns of cavitating gas-liquid two-phase flow in water exit have been studied experimentally. The complicated processes of cavity's collapse, its re-generation, and cavity's interaction with the free surface, etc. have been observed. For a collapsing cavity, its transparent tail becomes opaque, which may be related to the formation of re-entrant jet. However, in general, the cavity collapses entirely. By using the FLUENT software and VOF method, the flow field is simulated numerically and the results are in agreement with experiment. |
| |
| Keywords: | supercavity high-speed water exit high-speed photography flow pattern |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《》浏览原始摘要信息 |
| 点击此处可从《》下载免费的PDF全文 |
|
