| 脉冲磨料射流中球泡溃灭特性研究及数值分析 |
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| 引用本文： | 卢义玉,李晓红,康勇,焦斌权. 脉冲磨料射流中球泡溃灭特性研究及数值分析[J]. 应用力学学报, 2006, 23(2): 199-202 |
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| 作者姓名： | 卢义玉 李晓红 康勇 焦斌权 |
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| 作者单位： | 重庆大学,重庆,400044 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 从理论上研究了脉冲磨料射流中空化球泡的溃灭特性,建立了脉冲磨料射流中空化球泡的动力学方程,数值计算分析了磨料浓度、磨料粒径、射流振荡频率和幅值以及流场压力对脉冲磨料射流中空泡溃灭过程的影响规律。研究表明,脉冲磨料射流中磨料的存在将增大空泡溃灭历时,从而减弱射流的空蚀破坏能力,其中磨料的粒径、浓度和流场压力影响幅度较大。
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| 关 键 词： | 脉冲磨料射流 空化球泡 溃灭 数值模拟 |
| 文章编号： | 1000-4939（2006）02-0199-04 |
| 收稿时间： | 2004-09-06 |
| 修稿时间： | 2004-09-062005-09-19 |
Numerical Simulation of Dynamic Characteristics of Spherical Bubble Collapse in Pulsed Abrasive Water Jet |
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| Lu Yiyu,Li Xiaohong,Kang Yong,Jiao Binquan. Numerical Simulation of Dynamic Characteristics of Spherical Bubble Collapse in Pulsed Abrasive Water Jet[J]. Chinese Journal of Applied Mechanics, 2006, 23(2): 199-202 |
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| Authors: | Lu Yiyu Li Xiaohong Kang Yong Jiao Binquan |
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| Abstract: | The characteristics of cavitating bubbles in the pulsed abrasive water jet(PAWJ) are investigated and the dynamic equations of cavitating bubbles are established.The effects of abrasive diameter and density,oscillating frequencies and the pressures of flow on the spherical bubble colla are numerically simulated.It is shown that the presence of abrasives increases the period of bubble collapse while the intensity of cavitating erosion is weakened. |
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| Keywords: | pulsed abrasive water jet cavitation bubble collapse numerical simulation. |
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