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

摘要建议编号：9612308首席研究员：雷纳迪这项研究涉及两种不相容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很多种可能性。然而，实验表明，在几种可能性中，某些形状通常是首选的。这项研究的动机是缩小理论预测和实验观察之间的差距。将使用物理建模、分析和计算技术的组合来实现预期的结果。这项研究的重点将集中在几个重要问题上，包括振荡强迫作为动态稳定或失稳机制的作用，两层聚合物流动和两层对流。这项研究在制造双组分聚合物材料和层状膜，以及在管道和通道中的双组分液体流动方面都有应用，例如在使用水来帮助石油产品在管道中更经济地运输方面。这项技术的一个主要问题是两个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.