多泡相互作用对气泡溃灭的影响

张凌新; 闻仲卿; 邵雪明

doi:10.6052/0459-1879-13-067

多泡相互作用对气泡溃灭的影响

doi: 10.6052/0459-1879-13-067

浙江大学力学系流体动力与机电系统国家重点实验室, 杭州 310027

基金项目: 国家自然科学基金(11272284)和新世纪优秀人才支持计划(2010)资助项目.

详细信息

通讯作者:
邵雪明，教授，主要研究方向：流体力学，水动力学，多相流。E-mail：mecsxm@zju.edu.cn

中图分类号: O352
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出版历程
- 收稿日期: 2013-03-11
- 修回日期: 2013-05-29
- 刊出日期: 2013-11-18

INVESTIGATION OF BUBBLE-BUBBLE INTERACTION EFFECT DURING THE COLLAPSE OF MULTI-BUBBLE SYSTEM

State Key Laboratory of Fluid Power Transmission and Control, Department of Mechanics, Zhejiang University, Hangzhou 310027, China

Funds: The project was supported by the National Natural Science Foundation of China (11272284) and the Program for New Century Excellent Talents in University (2010).

摘要

摘要: 通过直接数值模拟方法对多泡在压力驱动下的溃灭过程进行了研究。气相满足理想气体正压模型，液相为不可压流体，采用基于压力的方法求解多泡的两相流场。数值研究表明，在多泡流场中，中心气泡的溃灭过程明显不同于单泡，存在总体溃灭延迟现象和后期加速现象。随着周围气泡数的增多或气泡间距的减小，中心气泡的溃灭时间增长，溃灭时的压力峰值增大。结合理论定性分析发现，气泡运动不仅受远场压力的驱动，还受周围气泡诱导压力场的影响。周围气泡的诱导压力经历先减小后增大的过程，从而使受其影响的中心气泡产生先延迟后加速的特征。
- 多泡 /
- 流体体积 /
- 直接数值模拟
Abstract: The collapse stage of 3D bubbles in higher surrounding pressure is studied using direct numerical simulation based on the volume of fluid (VOF) method. The numerical results show that the collapse of central bubble in multi-bubble system is different from single bubble collapse significantly, which contains delay stage and acceleration stage. Increasing the number of neighboring bubbles or decreasing the distance between bubbles leads to a longer collapse time and a higher pressure peak of central bubble. According to theoretical analysis, the bubble's radial motion is driven not only by the liquid pressure in the far field but also by the pressures emitted from the neighboring bubbles. The pressures from the neighboring bubbles first decrease and then increase. This leads to the delay and acceleration characteristics of central bubbles.
- bubble-bubble interaction /
- VOF /
- DNS

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参考文献(12)

Kim SE, Schroeder S. Numerical study of thrust-breakdown due to cavitation on a hydrofoil, a propeller, and a water jet. In: Proceedings of 28th Symposium on Naval Hydrodynamics, California, USA, September, 2010, 43-51

Rayleigh L. On the pressure developed in a liquid during the collapse of a spherical cavity. Phil Mag,1917,34:94-98

Plesset MS. The dynamics of cavitation bubbles. ASME J Appl Mech,1949,16:228-231

Singhal AK, Athavale MM, Li H, Jiang Y. Mathematical basis and validation of the full cavitation model. J Fluids Eng,2002,124(3):617-624

Ida M. Multibubble cavitation inception. Phys Fluids,2009,21:113302

Shaw SJ, Jin YH, Gentry TP, et al. Experimental observations of the interaction of a laser generated cavitation bubble with a flexible membrane. Phys Fluids,1999,11:2437

Johnsen E, Colonius T. Numerical simulations of non-spherical bubble collapse. J Fluid Mech,2009,629:231-262

Zhang S, Duncan JH, Chahine GL. The final stage of the collapse of a cavitation bubble near a rigid wall. J Fluid Mech,1993,257:147-181

Tomita Y, Robinson PB, Tong RP, et al. Growth and collapse of cavitation bubbles near a curved rigid boundary. J Fluid Mech,2002,466:259-283

Gregori P, Petkovšek R, Mo?ina J. Investigation of a cavitation bubble between a rigid boundary and a free surface. J Appl Phys,2007,102:094904

张凌新, 尹琴, 邵雪明. 水中气泡溃灭的理论与数值研究. 水动力学研究与进展A辑,2012, 27(1): 127-132 (Zhang Lingxin, Yin Qin, Shao Xueming. Theoretical and numerical studies on the bubble collapse in water. Chinese Journal of Hydrodynamics, 2012, 27(1): 127-132 (in Chinese))

Brennen CE. Cavitation and Bubble Dynamics. New York: Oxford University Press, 1995

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