The Deformation and Rupture of Thin Liquid Films

液膜的变形和破裂

• 批准号: 8820350
• 负责人: Constantine Pozrikidis
• 金额: $ 10.74万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-06-01 至 1991-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8820350&HistoricalAwards=false
• 关键词: Deformation; Rupture; Thin; Liquid; Films

Numerical modeling based on the boundary integral method is to be applied to the study of liquid film stability under the action of gravity, surface tension, and shear. The films will be considered as highly viscous, and the usual simplifying approximation, whereby film thickness variations are assumed to occur with wave lengths much larger than the film thickness, will not have to be used. The development of film instabilities will be followed numerically into the regime where surface deformation has become very large. The research is relevant to phenomena in film technologies such as coating, lubrication, and foams.

将基于边界积分法的数值模拟方法应用于重力、表面张力和剪切作用下的液膜稳定性研究。薄膜将被认为是高粘性的，不需要使用通常的简化近似，即假设薄膜厚度随波长的变化而发生变化。薄膜不稳定性的发展将在数值上进入表面变形变得非常大的区域。这项研究与薄膜技术中的现象有关，如涂层、润滑和泡沫。