Français
5. Conclusion
This article reviews the state of the art in gravity flow of granular solids in silos. It should be noted that the term "granular solids" is used here to designate materials with a large particle size, for which gravitational forces (weight) are predominant over interparticle forces. The basic principles and definitions, as well as the elementary mechanisms involved, were first presented. Emphasis was then placed on flow regimes, stress fields (static and dynamic) and velocity profiles. For all these aspects, the available models and their reliability were discussed, along with the basic principles and assumptions on which they are based. For simple silo geometries, these models generally provide a good estimate of the parameters of interest.
Generally speaking, it is possible to distinguish two main modes of flow within silos:
...
The Ultimate Scientific and Technical Reference
This article is included in
Unit operations. Chemical reaction engineering
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Conclusion
Glossary
Bibliography
Software tools
Silo Stress tool: free software for calculating vertical and horizontal stress profiles.
http://www.dietmar-schulze.com
LIGGGHTS® : Open source software for the simulation of granular media using the Discrete Element Method (DEM).
...Websites
UNIT module (open-access distance learning course): "Powder Science and Technology".
Dietmar Schulze
http://www.dietmar-schulze.com
Freeman Technology
Events
World Congress of Particle Technology (event held every 3 years).
PARTEC International Congress on Particle Technology, Nuremberg, Germany (annual event).
International Conference on Conveying and Handling of Particulate Solids (CHoPS) (event held every 3 years).
Powders & Grains (event held every 4 years).
Regulations
State-of-the-art guide to silos
http://www.installationsclassees.developpement-durable.gouv.fr
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
The Ultimate Scientific and Technical Reference
