Direct numerical simulation of collective bubble behavior

被引：1
|
作者：
Zhang, Yu-ning [1 ]
Li, Sheng-cai [1 ]
机构：
[1] Univ Warwick, Sch Engn, Coventry CV4 7AL, W Midlands, England
来源：
JOURNAL OF HYDRODYNAMICS | 2010年 / 22卷 / 05期
基金：
英国工程与自然科学研究理事会;
关键词：
direct numerical simulation; cavitation resonance; bubble cloud; volume oscillation; shape oscillation; front tracking; pressure wave;
D O I：
10.1016/S1001-6058(10)60037-6
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The present paper studied the nonlinear collective bubble behavior using direct numerical simulation (DNS) coupled with front tracking method. The bubbles inside cloud are deformable according to surrounding environment. The effects of viscosity and bubble-bubble interaction have been considered in the simulations. Response of bubble cloud with large void fraction (1%-25%) to continuous pressure wave with finite amplitudes has been simulated. A collective bubble behavior and associated pressure oscillation have been revealed from the simulations. Strong shape oscillations including jet formations of bubbles have also been observed when a strong pressure wave is passing through the bubble cloud.
引用
收藏
页码：785 / 789
页数：5
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