Granular behaviors, analysis

Additionally grains accelerate down a cascading surface, and therefore the resulting behavior changes qualitatively depending on whether they do or do not reach an asymptotic speed in the cascade (for example, compare Figs. 4C and 5). These and other influences make first-principles analysis of granular scale-up problematic. 

Numerical simulations of granular flow and heat transfer in an agitated filler dryer are presented using TPD. The effects of operating parameters (wall tonperature and impeller speed) and batch size on drying behavior have been systematically stedied and compared with experimental data. Detailed analysis of temporal profiles of temperature and solvent content in the bed was performed. Under constant fill, both... 

In the analysis of mechanical behavior of granular materials, the stress path has a very important role. Here we assume the simplest case (Fig. 1) where the stress path is expressed as... 

In a very recent study by Farzaneh Kaloorazi [42], it was presumed that the mechanical behavior of dense granular flows is not approximated sufficiently accurately by the soil mechanics theory representing the mechanical behavior of the system as a rate independent plastic regime characterized by a constant friction coefficient. It was claimed that somewhat improved model predictions were obtained for bubbling fluidized bed combustors with a somewhat more comprehensive theory proposed by Jop et al. [77]. This alternative frictional pressure tensor closure was derived based on visco-plastic fluid analysis. 

Iddir H, Arastoopour H, Hrenya DM (2005) Analysis of binary and ternary granular mixtures behavior using the kinetic theory approach. Powder Technol 151 117-125... 

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