| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 672624 | Particuology | 2009 | 5 Pages |
Abstract
The drag of non-spherical particles is a basic, important parameter for multi-phase flow. As the first step in research in this area, the terminal velocities, Ut, of hemispherical and spherical segment particles with maximal diameters of 6-21Â mm were measured in static fluids by using a high-speed video camera. The drag coefficient, CD, measured for Reynolds number, Re of 101-105, has been obtained and compared with those for a sphere. The Re based on the terminal velocity has a logarithmic linear relationship with Ar number for both the facet facing upwards or downwards for the two experimental spheroidal particles, and their CD values are greater than those of spheres. A shape function that depends on the initial orientation of the particle facet is presented to correct for the shape effects.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Jinsheng Wang, Haiying Qi, Changfu You,