Migration of Liquid Bridges at the Interface of Spheres and Plates with an Imposed Thermal Gradient

被引：9

作者：

Dai, Qingwen ^{[1
]}

Chong, Zhejun ^{[1
]}

Huang, Wei ^{[1
]}

Wang, Xiaolei ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Natl Key Lab Sci & Technol Helicopter Transmiss, Nanjing 210016, Peoples R China

来源：

LANGMUIR | 2020年 / 36卷 / 22期

基金：

中国国家自然科学基金;

关键词：

SURFACE-TENSION GRADIENTS; THERMOCAPILLARY MIGRATION; CAPILLARY BRIDGES; DROPLET MOVEMENT; MOTION; MARANGONI; DRIVEN; FLOW; DYNAMICS; FORCES;

D O I：

10.1021/acs.langmuir.9b03951

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, we experimentally investigate the migration of liquid bridges at the interface of spheres and plates with an imposed thermal gradient. The key influencing factors of interface gap, sphere material and diameter, liquid viscosity, and thermal gradient on the migration behaviors are highlighted. Furthermore, the physical mechanism of this intriguing interfacial phenomenon is numerically unraveled. The originality of this work lies in the fact that when thermal gradients were encountered, liquid bridges could migrate at the interface of spheres and plates, and a general design philosophy of related parameters for enhancing or weakening this thermal flow is proposed.

引用

页码：6268 / 6276

页数：9

共 51 条

[1] Spontaneous movement of water droplets on patterned Cu and Al surfaces with wedge-shaped gradients [J].