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Particulate material

Material properties of particulate material:



  • It compresses like a gas:





  • It flows like a liquid:





  • It is made up of small pieces of solid.




As a collective, particulate materials make up a new state of matter with unique properties and behaviors.  


Why do we care how particulate materials behave?

We build on particulate materials:










Particulate materials are part of many manufacturing processes:

We need to know how to mix it:









separate it








transport it




Store it







Drive on it, build on it,




Example particle problems:

hopper flow















Multi-phase flow in pipe lines 






traffic congestion




Shock wave propagation



Fluidized bed





Ball Mill

 









Understanding natural phenomenon such as avalanches - fingering




slope stability and landslides









Brazil nut effect







How to model it:
Discrete element simulations:



How to solve particulate problems:
Break it down into the simplest components