Using a kinetic theory approach incorporating interaction with the air to model granular flow down a chute

Yonghao Zhang, Jason Reese

Research output: Chapter in Book/Report/Conference proceedingChapter


Kinetic theory-based models used to study the flow o f granular material down an inclined chute have usually ignored the effect o f the interstitial gas. In this paper, we derive new expressions for the drag force and energy dissipation caused by the interstitial gas. We apply this new model to fully-developed steady mixture flows down a simple inclined chute and compare the results to other simulations. Our results show that the interstitial gas plays a significant role in modifying the characteristics o f fully-developed flow, especially for small particles.
Original languageEnglish
Title of host publicationHandbook of Powder Technology Vol 10
Subtitle of host publicationHandbook of Conveying and Handling of Particulate Solids
Place of PublicationAmsterdam
PublisherElsevier Science
Pages255-261, Chapter 3.2
ISBN (Print)0-444-50235-1
Publication statusPublished - 2001


  • kinetic model
  • air mass
  • energy dissipation

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