Interfacial Dynamics in Bicomponent Materials: Viscous, Viscoelastic and Thermal Effects

双组分材料中的界面动力学：粘性、粘弹性和热效应

• 批准号: 9612308
• 负责人: Yuriko Renardy
• 金额: $ 17.7万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-03-01 至 2000-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9612308&HistoricalAwards=false
• 关键词: Interfacial; Dynamics; Bicomponent; Materials; Viscous

ABSTRACT Proposal Number: 9612308 Principal Investigator: Renardy This research is concerned with the shape of the interface between two immiscible liquids. Theoretically there are often many possibilities for the shape of the boundary between the two fluids. However, experiments show that certain shapes are often preferred among the several possibilities. The motivation of this research is to lessen the gap between theoretical prediction and experimental observation. A combination of physical modeling, analysis , and computational techniques will be used to achieve the desired results. The focus of this study will be on several important issues including the role of oscillatory forcing as a dynamic stabilization or destabilization mechanism, two layered polymeric flows and two layer convection. This study has applications in the manufacture of bi-component polymeric materials and layered films, and in bi-component liquid flow in pipes and channels such as in the use of water to assist in the more economical transport of petroleum products in pipelines. A major problem in this technology is the unexpected behavior of two fluid systems.

摘要 方案编号：9612308主要研究者：Renardy 本研究是关于两种不互溶液体之间的界面形状。 从理论上讲，两种流体之间的边界形状往往有许多可能性。 然而，实验表明，在几种可能性中，某些形状通常是优选的。 本研究的动机是缩小理论预测与实验观测之间的差距。 将使用物理建模、分析和计算技术的组合来实现所需的结果。 本研究的重点将是几个重要的问题，包括振荡强迫的作用，作为一个动态稳定或不稳定的机制，两层聚合物流动和两层对流。 这项研究在双组分聚合物材料和层状膜的制造中，以及在管道和通道中的双组分液体流动中具有应用，例如在使用水以帮助在管道中更经济地运输石油产品中。 该技术的一个主要问题是两种流体系统的意外行为。