Boundary effects for Couette flow of granular materials: Dynamical modelling
type: Item
instance of: scholarly article
title: Boundary effects for Couette flow of granular materials: Dynamical modelling
zbMATH Open document ID: 0858.76011
DOI: 10.1016/0307-904X(95)00105-S
author: Xiaoming Zheng
author: Jim Hill
published in: Applied Mathematical Modelling
publication date: 1996-05-22T00:00:00Z
review text: Boundary effects for simple Couette flow of granular materials are examined using a dynamical modeling method. It is shown that the roughness of the boundary depends not only on the physical geometry of the boundary but also at least on the boundary speed and the particle fraction in the flow. Without consideration of the boundary speed, a geometrically rough boundary has no absolute meaning: a geometrically rough boundary can become smooth, and a smooth boundary can become rough. The relationship between the slip velocity and the boundary speed is found to be generally nonlinear and depending on the geometrical roughness and particle fraction. This investigation is important for industrial and engineering applications, such as the transportation and storage of the bulk materials.
Mathematics Subject Classification ID: 76A99
zbMATH DE Number: 880837
zbMATH Keywords: roughness of boundary
zbMATH Keywords: boundary speed
zbMATH Keywords: particle fraction
zbMATH Keywords: slip velocity
MaRDI profile type: Publication
cites work: The Mechanics of Rapid Granular Flows
cites work: Self-organized criticality
cites work: Q3933886
cites work: A generalized continuum theory for granular materials
cites work: Grain flow as a fluid-mechanical phenomenon
cites work: A theory for the rapid flow of identical, smooth, nearly elastic, spherical particles
cites work: Kinetic theories for granular flow: inelastic particles in Couette flow and slightly inelastic particles in a general flowfield
cites work: Boundary conditions on continuum theories of granular flow
cites work: Boundary conditions for high-shear grain flows
cites work: Boundary conditions for plane flows of smooth, nearly elastic, circular disks
cites work: Boundary Conditions for Rapid Granular Flow: Flat, Frictional Walls
cites work: Boundary effect on granular shear flows of smooth disks
cites work: Theory of rectilinear flow of granular materials
cites work: Plane steady shear flow of a cohesionless granular material down an inclined plane: A model for flow avalanches. I. Theory
cites work: A computer code for analyzing transient three-dimensional rapid granular flows in complex geometries
cites work: Q3996938
cites work: A Monte Carlo solution for rapidly shearing granular flows based on the kinetic theory of dense gases
cites work: The Thickness of Steady Plane Shear Flows of Circular Disks Driven by Identical Boundaries
description: scientific article; zbMATH DE number 880837