𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A Numerical Model for Flow of Granular Materials in Silos. Part 2: Model Validation

✍ Scribed by S.C. Negi; Z. Lu; J.C. Jofriet

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
241 KB
Volume
68
Category
Article
ISSN
0021-8634

No coin nor oath required. For personal study only.

✦ Synopsis

A hybrid numerical model based on finite-element and discrete-element methods was verified for modelling the flow of granular materials in silos or bins. Laboratory experiments involving gravity flow of soybean from a parallel wall bin with length-to-width ratio of three (state of plane strain) were carried out for different outlet widths. Computer simulations successfully matched most of the observed features of the physical tests. The results showed that the maximum wall pressure occurs near the top of the hopper in the transition region from parallel to convergent flow. The ratio of the dynamic pressure to the static pressure at the level of transition ranged from 2β€’5 to 3β€’6 depending upon the width of the outlet.

πŸ“œ SIMILAR VOLUMES

A Numerical Model for Flow of Granular M
A Numerical Model for Flow of Granular Materials in Silos. Part 3: Parametric Study
✍ J.C. Jofriet; S.C. Negi; Z. Lu πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 391 KB

A hybrid numerical model for the solution of bulk solids flow in silos and bins was used for the analysis of flow in symmetric and asymmetric rectangular bins. Seven analyses in symmetric bins with varying wall frictions, hopper slopes and discharge openings were carried out. In the four asymmetric

A block-implicit numerical procedure for
A block-implicit numerical procedure for simulation of buoyant swirling flows in a model furnace
✍ Marcelo J. S. de Lemos πŸ“‚ Article πŸ“… 2003 πŸ› John Wiley and Sons 🌐 English βš– 429 KB

## Abstract This work reports numerical results for the case of incompressible laminar heated flow with a swirl in a vertical cylindrical chamber. Computations are obtained with a point‐wise block‐implicit scheme. Flow governing equations are written in terms of the so‐called primitive variables an