Filtered models for bidisperse gas-particle flows

TitleFiltered models for bidisperse gas-particle flows
Publication TypeJournal Article
Year of Publication2014
AuthorsHolloway W, Sundaresan S
JournalChemical Engineering Science
Volume108
Pagination67-86
Type of ArticleJournal Article dcm
KeywordsBidisperse system, Coarse-grained model, Fluidization, Multiphase flow, Particle sizedistribution, Particle technology
Abstract

Using the microscopic multi-fluid model as a starting point we perform fine grid simulations of bidisperse gas–particle flows to examine the dependence of the filtered fluid–particle drag coefficient, particle–particle drag coefficient, and particle phase stress on the volume fractions and sizes of the particles and the filter size. Scalings are identified for the filtered fluid–particle drag coefficient, particle–particle drag coefficient, and particle phase pressure that capture the dependence of each filtered correction on the size and volume fraction ratios of the bidisperse assembly.

DOI10.1016/j.ces.2013.12.037