Storage and Flow of Solids
01 Jan 1964-
About: The article was published on 1964-01-01 and is currently open access. It has received 585 citations till now. The article focuses on the topics: Flow (mathematics).
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12 citations
TL;DR: In this paper, a two-dimensional model for stresses in a cohesive bulk solid in a vertical, cylindrical vessel has been developed, assuming a rotated, circular arc orientation of principal stresses.
12 citations
TL;DR: A triaxial compression test was attempted for the first time to characterize material properties of pharmaceutical wet masses of different hydrophilicity and particle sizes and these material parameters could be used as references for selection of excipients and formulation for extrusion/spheronization.
12 citations
TL;DR: In this paper, a modified outflow funnel was presented to evaluate the flow enhancing potency of glidants, where the outflow process of a cohesive powder was prevented by destroying the bulk arches.
12 citations
TL;DR: In this paper, the authors used a pressure gauge for simultaneously measuring the normal and shear stresses of granular solids in a flat-bottomed bin with centric and eccentric discharges.
Abstract: The flow patterns and stresses on the wall in a two‐dimensional flat‐bottomed bin with centric and eccentric discharges were investigated. The flow pattern histories of granular solids in the bin were recorded using a digital camcorder. A pressure gauge for simultaneously measuring the normal and shear stresses of granular solids was used. During filling with the granular material, the variations in stresses acting on the side walls with time were observed. The dynamic wall stresses were obtained during the centric and eccentric discharges. In addition, using Mohr's stress circle, an analysis of the stress state at the bin side‐wall was determined. The normal and shear stress fluctuation ranges predicted by Mohr's stress circle were close to the experimental results. The effect of the discharge slot position upon the wall stress was also demonstrated. Employing the results obtained using stress measurements and image processing, the pressure pulsation phenomena in a bin may be understood further.
12 citations