Motion of Small Particles in a Three-Dimension Chamber
碩士 === 國立海洋大學 === 造船工程學系 === 83 === Designing of settling tanks of a ship or industrial settling chambers, the motion of small particles in a chamber is a very important factor to be considered. The equations motion of particles in fluid we...
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| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
1995
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| Online Access: | http://ndltd.ncl.edu.tw/handle/77414475752385409039 |
| Summary: | 碩士 === 國立海洋大學 === 造船工程學系 === 83 === Designing of settling tanks of a ship or industrial settling
chambers, the motion of small particles in a chamber is a very
important factor to be considered. The equations motion of
particles in fluid were solved by Runge-Kutta method together
with the three dimensional Navier-Stokes equations and
continuity equation discretized by using finite difference
scheme. The convective terms were discretized by using upwind
difference and the viscous terms by using central difference.
The empirical drag formula was used to compute the resistance
of spherical particles moving in the fluid. Results of
numerical simulation showed good agreement with the
experimental results [12]. In this study, particles were
classified as two types of motion (1) the exhaust type and (2)
the adhesion type. Increasing the diameter of particles,
decreasing the Reynolds number or decreasing the space between
the baffle and the bottom of chamber increases the possibility
of adhering particles to the bottom of chamber.
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