|Title||Filtered models for bidisperse gas-particle flows|
|Publication Type||Journal Article|
|Year of Publication||2014|
|Authors||Holloway W, Sundaresan S|
|Journal||Chemical Engineering Science|
|Type of Article||Journal Article dcm|
|Keywords||Bidisperse system, Coarse-grained model, Fluidization, Multiphase flow, Particle sizedistribution, Particle technology|
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.