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Particle detachment from surfaces and subsequent entrainment into fluid flow occurs in many natural and industrial applications. In this study, a Monte Carlo model for particle resuspension from substrate under turbulent flow conditions was developed. The forces and torque acting on a particle were evaluated and the criteria for the rolling detachment of rough spherical and nearly spherical particles...
A two-fluid model (TFM) of multiphase flows based on the kinetic theory and small frictional limit boundary condition of granular flow was used to study the behavior of dense to dilute gas–solid flows in vertical pneumatic conveyor. An axisymmetric 2-dimensional, vertical pipe with 5.6m length and 0.01m internal diameter was chosen as the computation domain, same to that used for experimentation in...
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