Effects of Bjerknes forces on gas-filled microbubble trapping by ultrasonic waves

被引：0

作者：

Yamakoshi, Yoshiki ^{[1
]}

Ozawa, Yoshiyuki ^{[1
]}

Ida, Masato ^{[2
]}

Masuda, Nobuyuki ^{[1
]}

机构：

[1] Faculty of Engineering, Gunma University, 1-5-1 Tenjin-cho, Kiryu-shi, Gunma 376-8515, Japan

[2] Satellite Venture Business Laboratory, Gunma University, 1-5-1 Tenjin-cho, Kiryu-shi, Gunma 376-8515, Japan

来源：

Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers | 2001年 / 40卷 / 5 B期

关键词：

Acoustic fields - Agglomeration - Bubbles (in fluids) - Fluid dynamics - Forced convection - Velocity measurement;

D O I：

10.1143/jjap.40.3852

中图分类号：

学科分类号：

摘要：

When gas-filled microbubbles flow into an ultrasonic wavefield, the microbubbles interact with the ultrasonic waves and aggregate into large masses of bubbles. Those bubbles are trapped against the surrounding liquid flow by ultrasonic waves. In this paper, the microbubble trapping by an ultrasonic wavefield are discussed both from theoretical and experimental viewpoints. Both, the microbubble aggregation by ultrasonic-wave secondary Bjerknes force and the microbubble trapping by ultrasonicwave primary Bjerknes force are considered. The dynamics of microbubbles inside an ultrasonic wavefield are observed using two different types of gas-filled microbubbles with corresponding mean diameters of 20 μm and 1.3 μm.

引用

页码：3852 / 3855

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