Journal ArticleDOI
The flow of granular materials—II Velocity distributions in slow flow
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This article is published in Chemical Engineering Science.The article was published on 1982-01-01. It has received 127 citations till now. The article focuses on the topics: Flow (mathematics) & Granular material.read more
Citations
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Journal ArticleDOI
On dense granular flows.
TL;DR: A quantitative comparison between data coming from different experiments in the same geometry identifies the robust features in each case and a transverse analysis of the data across the different configurations allows to identify the relevant dimensionless parameters, the different flow regimes and to propose simple interpretations.
ReportDOI
MFIX documentation theory guide
TL;DR: This report describes the MFIX (Multiphase Flow with Interphase exchanges) computer model, a general-purpose hydrodynamic model that describes chemical reactions and heat transfer in dense or dilute fluid-solids flows, flows typically occurring in energy conversion and chemical processing reactors.
Journal ArticleDOI
Rolling friction in the dynamic simulation of sandpile formation
TL;DR: In this article, a rolling friction model is proposed to avoid arbitrary treatments or unnecessary assumptions, and its validity is confirmed by the good agreement between the simulated and experimental results under comparable conditions, which suggest that the angle of repose increases significantly with the rolling friction coefficient and decreases with particle size.
Book ChapterDOI
The Mechanics of Rapid Granular Flows
TL;DR: In this article, the authors present a review of the classical papers of Bagnold and a discussion of the various modes and regimes of granular flow, such as vertical channels and inclined chutes.
Journal ArticleDOI
The flow rate of granular materials through an orifice
Cristian Mankoc,Alvaro Janda,Roberto Arévalo,José Martín Pastor,Iker Zuriguel,Angel Garcimartín,Diego Maza +6 more
TL;DR: In this article, the authors provide experimental data and numerical simulations covering a wide span of outlet sizes, both in three and two-dimensions, and propose a new law for the mass flow rate of grains that correctly reproduces the data for all the orifice sizes.
References
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Journal ArticleDOI
Soil mechanics and plastic analysis or limit design
D. C. Drucker,W. Prager +1 more
Journal ArticleDOI
On The Yielding of Soils
TL;DR: In this paper, Hvorslev's equation for the shear strength of clay is shown to define a surface in a space of three variables σ, e and τ. The progressive yielding of a sample defines a loading path in this space, and the paths taken by samples in differing tests can be correlated if a boundary energy correction is applied.
Journal ArticleDOI
Associated and non-associated visco-plasticity and plasticity in soil mechanics
TL;DR: The visco-plastic model is established as a realistic general description of soil behaviour as well as a computationally convenient fiction for solving any properly formulated plasticity problem as discussed by the authors.
Journal ArticleDOI
The influence of strains in soil mechanics
TL;DR: In this paper, the load-deformation behavior of soils in mixed boundary value problems at model scale is discussed. But the main objective is to develop an understanding of the stress-strain behaviour of soils so that reliable predictions can be made concerning their load deformation characteristics at all working loads, rather than only loads at failure.
Journal ArticleDOI
Elasto-plastic stress-strain theory for cohesionless soil with curved yield surfaces
TL;DR: An elasto-plastic stress-strain theory for cohesionless soil with curved yield surfaces is developed on the basis of soil behavior observed in laboratory tests as discussed by the authors, which is applicable to general three-dimensional stress conditions, but the parameters required to characterize the soil behavior can be derived entirely from results of isotropic compression and conventional drained triaxial compression tests.