Interactions of rigid particles and liquid in a concentrated dispersion: Lagrangian computations and stereo imaging of RIM fluidisation experiments
Date Issued
2004
Date
2004
Author(s)
Teng, Chen-Lin
DOI
en-US
Abstract
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.
Subjects
拉格朗日力學
三維立體影像分析
無網格數值模擬
fluidisation
Concentrated dispersion
stereo imaging
Lagrangian computations
the Method of Fundamental Solutions (MFS)
Type
thesis
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