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Gas‐Particle flow in a duct of arbitrary inclination with particle‐particle interactions
Author(s) -
Ocone R.,
Sundaresan S.,
Jackson R.
Publication year - 1993
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690390802
Subject(s) - mechanics , duct (anatomy) , particle flow , flow (mathematics) , particle (ecology) , compaction , classical mechanics , geotechnical engineering , physics , materials science , geology , discrete element method , medicine , oceanography , pathology
Earlier work of Sinclair and Jackson on the flow of gas‐particle suspensions in vertical pipes is extended to the case of ducts of arbitrary inclination. As a result of the compaction due to gravity, it is necessary to take into account forces transmitted between particles at points of sustained, rolling and sliding contact, and a simple frictional model of this contribution to the stress is introduced. The resulting theory is shown to predict fully developed flows with the qualitative features to be expected, even in horizontal ducts. The effects of flow rates, duct inclination, and duct width on the solution are explored.