Experimental studies of surface waves inside a cylindrical container

被引：26

作者：

Lee, Cunbiao ^{[1
]}

Peng, Huaiwu ^{[1
]}

Yuan, Huijing ^{[1
]}

Wu, Jiezhi ^{[1
]}

Zhou, Mingde ^{[1
]}

Hussain, Fazle ^{[2
]}

机构：

[1] Peking Univ, Dept Mech & Aerosp Engn, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China

[2] Univ Houston, Dept Mech Engn, Houston, TX 77204 USA

来源：

JOURNAL OF FLUID MECHANICS | 2011年 / 677卷

基金：

中国国家自然科学基金; 国家杰出青年科学基金;

关键词：

capillary waves; instability; CAPILLARY-GRAVITY WAVES; WATER-WAVES; FLOW; RESONANCE; VISCOSITY; BASIN;

D O I：

10.1017/jfm.2011.43

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

We experimentally investigate the dynamics of surface waves excited by oscillations from a cylindrical sidewall. Particle-imaging-velocimetry measurements with fluorescent particles were used to determine the flow patterns near the sidewall of the cylindrical fluid container and to identify the locations of the evolving air-water interfaces. The high-frequency wall oscillations created four jets that originate at the cylindrical sidewall. Four vortex streets shed from the jets propagate from the sidewall to the centre of the container and subsequently excite a low-frequency gravity wave. The interaction between this gravitational surface wave and the high-frequency capillary waves was found to be responsible for creating droplet splash at the water surface. This phenomenon was first described as 'Long-Xi' or 'dragon wash' in ancient China. The physical processes for generating the droplet ejection, including the circular capillary waves, azimuthal waves, streaming jets and low-frequency gravity waves, are described in this paper.

引用

页码：39 / 62

页数：24

共 47 条

[1]

[Anonymous], 2006, VORTICITY VORTICES D, DOI DOI 10.1007/978-3-540-29028-5

[2] Steady streaming due to vibrating walls [J].