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

项目编号：9612308项目负责人：Renardy本研究关注的是两种不混相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通常有多种可能。然而，实验表明，在几种可能性中，某些形状往往是首选的。本研究的动机是为了缩小理论预测与实验观察之间的差距。物理建模、分析和计算技术的结合将被用来达到预期的结果。本研究的重点将放在几个重要的问题上，包括振荡强迫作为动态稳定或不稳定机制的作用，两层聚合物流动和两层对流。本研究可应用于双组份聚合物材料和层状膜的制造，以及管道和通道中双组份液体的流动，例如利用水来辅助更经济的管道运输石油产品。该技术的一个主要问题是两种流体系统的意外行为。

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.