The Nature and Effects of Particle Contacts in Suspensions

R.H. Davis, university of Colorado - Boulder，将从实验和理论上研究悬浮流动中颗粒粗糙度对颗粒-颗粒相互作用的影响，包括颗粒碰撞的可视化和分析。该研究包括使用微视频摄影观察颗粒接触和回弹，开发接触力和扭矩模型，可随后用于预测颗粒运动和流动微观结构，以及制定研究颗粒-颗粒接触流动的理论框架。该项目涉及工业和环境中的颗粒和多相过程，涉及悬浮流中尚未得到重视的关键研究问题。＊＊＊

Abstract 9712604 R.H. Davis, U. of Colorado - Boulder The effect of particle roughness on particle-particle interactions in suspension flow will be experimentally and theretically investigated, including the visualization and analysis of particle collisions. The study includes observation of particle contact and rebound by using microvideo photography, development of models of the contact forces and torques that can be subsequently employed to predict particle motions and flow microstructures, and formulation of a theoretical framework to study the flows with particle-particle contacts. The project has relevance to particle and multiphase processes in industry and environment, and deals with a key research issue in suspension flow that has not yet received proper attention. ***