Dynamics of Particles in Rotating Viscous Flows and the Centrifugation of Suspensions

本文将采用理论和计算相结合的方法来研究旋转场中的多相流。主要目标是开发和实现一种边界积分方法，用于在相对低雷诺数（O - seen近似）下求解旋转粘性流动中的线性化运动方程，并考虑在单个粒子或气泡周围形成的泰勒列。多粒子相互作用的研究，无论是否存在固体边界，将为旋转悬浮液的微观结构和流变行为的确定提供见解。设计了一个描述两粒子泰勒柱相互作用的可视化实验。本研究与环境、矿物和生物分离过程相关；燃烧和加工行业的混合；复合材料制造；地球物理流体运动。* * *

ABSTRACT CTS-9422752 A theoretical and computational approach will be undertaken to study multiphase flow in a rotating field. The main objective is the development and implementation of a boundary integral method for solving the linearized equation of motion in rotating viscous flow at relatively low Reynolds numbers (O seen approximation), and considering the Taylor columns formed around individual particles or bubbles. The study of multiple particle interactions, with and without the presence of solid boundaries, will provide insights into the microstructure of rotating suspensions and determination of rheological behavior. A visualization experiment to describe the Taylor column interactions of two particles is planed. The proposed study has relevance to separation process in environment, minerals and biology; mixing in combustion and processing industries; manufacturing of composite materials; and geophysical fluid motion. ***