Interactions of rigid particles and liquid in a concentrated dispersion:Lagrangian computations and stereo imaging of RIM fluidisation experiments

• Main Authors: Chen-Lin Teng, 滕貞麟
• Other Authors: Herve Capart
• Format: Others
• Language: en_US
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/97508785458288222587

碩士 === 國立臺灣大學 === 土木工程學研究所 === 92 === The goal of the present study is to develop experimental and computational tools for the study of concentrated dispersions of solid particles interacting with a liquid. The experimental approach developed uses stereo imaging to track the motions of the visible cores of transparent particles bathed in a liquid of identical refractive index. The capability of the approach is demonstrated by measuring the 3D circulation inside a fluidisation of 1,000 spheres. For the computational approach, Lagrangian dynamics is combined with the meshless Method of Fundamental Solutions. This approach is applied to rigid disks moving in a 2D potential flow. The resulting simulations show how liquid inertia influences the particle motions.