Flow of Gas-Particle Suspensions Through Standpipes

摘要：本文将对垂直管道中气-颗粒悬浮流动进行实验研究和相应的理论研究。粒子浓度和速度分布将在管道横截面上使用电容层析成像（ECT）技术进行测量。浓度波动及其空间将被测量和空间相关。双平面系统将允许从浓度波动的相互关系中获得粒子速度。所得结果将用于提高对两相流现象的基本认识和校正数值模拟。该研究与颗粒加工工业中流化床、气力输送、筒仓、固体喂料斗和其他设备的设计和运行有关。＊＊＊

ABSTRACT CTS-9421661 An experimental investigation and corresponding theoretical studies of gas-particle suspension flow in vertical pipes will be undertaken. Particle concentration and velocity distributions will be measured in the pipe cross-section using the techniques of electrical capacitance tomography (ECT). The concentration fluctuations and their spatial will be measured and spatially correlated. A twin-plane system will allow to obtain the particle velocity from the cross-correlation of concentration fluctuations. The results will be used to improved basic understanding of the two-phase flow phenomena and calibrate numerical simulations. The research has relevance to the design and operation of fluidized beds, pneumatic transport, silos, solid feed hoppers, and other equipment in particle processing industries. ***