Abstract
Considering both instantaneous collision and contacting by rolling between particles, a frictional-kinetic stresses model of particles is proposed. The collisional interaction of particles is predicted by kinetic theory of granular flow, while the sustained contact force is calculated from a friction stress model. An inverse tangent function is used to provide a smooth transitioning from the plastic and viscous regimes. Flow behavior of particles is simulated in a spouted bed. The distributions of concentration, velocity and granular temperature of particles are obtained. Calculated particle velocities and concentrations in the spouted beds are in agreement with experimental data published in literature.
| Original language | English |
|---|---|
| Pages (from-to) | 68-71 |
| Number of pages | 4 |
| Journal | Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics |
| Volume | 31 |
| Issue number | 1 |
| State | Published - Jan 2010 |
| Externally published | Yes |
Keywords
- Frictional-kinetic stresses model
- Gas-solid spouted bed
- Numerical simulation
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