Maximal Air Bubble Entrainment at Liquid-Drop Impact

被引：189

作者：

Bouwhuis, Wilco ^{[1
]}

van der Veen, Roeland C. A. ^{[1
]}

Tuan Tran ^{[1
]}

Keij, Diederik L. ^{[1
]}

Winkels, Koen G. ^{[1
]}

Peters, Ivo R. ^{[1
]}

van der Meer, Devaraj ^{[1
]}

Sun, Chao ^{[1
]}

Snoeijer, Jacco H. ^{[1
]}

Lohse, Detlef ^{[1
]}

机构：

[1] Univ Twente, Phys Fluids Grp, Fac Sci & Technol, MESA Inst & Burgers Ctr Fluid Dynam, NL-7500 AE Enschede, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 26期

关键词：

SOLID-SURFACE; IMMERSION LITHOGRAPHY; DYNAMICS; CAVITY;

D O I：

10.1103/PhysRevLett.109.264501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

At impact of a liquid drop on a solid surface, an air bubble can be entrapped. Here, we show that two competing effects minimize the (relative) size of this entrained air bubble: for large drop impact velocity and large droplets, the inertia of the liquid flattens the entrained bubble, whereas for small impact velocity and small droplets, capillary forces minimize the entrained bubble. However, we demonstrate experimentally, theoretically, and numerically that in between there is an optimum, leading to maximal air bubble entrapment. For a 1.8 mm diameter ethanol droplet, this optimum is achieved at an impact velocity of 0.25 m/s. Our results have a strong bearing on various applications in printing technology, microelectronics, immersion lithography, diagnostics, or agriculture. DOI: 10.1103/PhysRevLett.109.264501

引用

页数：4

共 20 条

[1] Controlled impact of a disk on a water surface: cavity dynamics [J].