The secondary Bjerknes force between two spherical bubbles and bubble accumulation
MA Yan1,2, LIN Shuyu1*, XU Jie1
（1 Shaanxi Key Laboratory of Ultrasonics, Shaanxi Normal University, Xi′an 710119, Shaanxi, China;2 College of Physics and Electronic Information Engineering, Engineering Research Center of Nanostructure and Functional Materials, Ningxia Normal University, Guyuan 756000, Ningxia, China）
Abstract:
The secondary Bjerknes force between two big spherical bubbles is obtained based on the nonlinear equations of two bubbles.The influence of driving pressure, driving frequency and the initial radii of two bubbles, the distance between two bubbles on the secondary Bjerknes force are investigated. The results show that the secondary Bjerknes force between two big spherical bubbles is enhanced under the inlinear oscillation.Under such attract force,the bubbles are gathered, and form stable structure(bubble accumulation).
KeyWords:
the secondary Bjerknes force; big bubbles; nonlinear; bubble accumulation
