Abstract
Abstract
Highlights
Shallow granular free-surface flows are one of the most common particle transport mechanisms in industrial bulk solids handling processes
The shear box apparatus is shown in figure 2(a). It consists of two polyvinyl chloride (PVC) rough lateral side plates that are able to pivot about two transverse steel rods, that are located at their centres and bolted to glass panes at the front and back of the shear box
For a monodisperse system in the absence of gravity, only the first three non-dimensional variables in (4.1a–f ) are relevant, and (4.2) reduces to the monodisperse particle diameter. It was this type of dimensional analysis combined with observations from discrete particle model (DPM) simulations and experiments that led to the development of the incompressible μ(I)-rheology (GDR-MiDi 2004; Jop et al 2006), which has advanced our understanding of the rheology of monodisperse granular flows
Summary
Shallow granular free-surface flows (or granular avalanches) are one of the most common particle transport mechanisms in industrial bulk solids handling processes. A single small intruder will percolate down through a matrix of large grains much faster than a single large intruder will rise up through a matrix of fines This suggests that the segregation flux function is not quadratic, but has a more cubic-like dependence on the small particle concentration (Bridgwater et al 1985; Gajjar & Gray 2014; van der Vaart et al 2015; Jones et al 2018).
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