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dc.contributor.authorLee, Cheng-Hsienen
dc.contributor.authorHuang, Zhenhuaen
dc.contributor.authorChiew, Yee-Mengen
dc.identifier.citationLee, C.-H., Huang, Z., & Chiew, Y.-M. (2015). A three-dimensional continuum model incorporating static and kinetic effects for granular flows with applications to collapse of a two-dimensional granular column. Physics of Fluids, 27, 113303-.en
dc.description.abstractThis work extends a one-dimensional continuum model for granular flows down inclined planes [C. H. Lee and C. J. Huang, “Kinetic-theory-based model of dense granular flows down inclined planes,” Phys. Fluids 24, 073303 (2012)] to solve three-dimensional problems involving both static and flow states. The new model decomposes the shear stress and pressure into enduring-contact and kinetic components. One novelty of the present model is the determination of the enduring-contact component of pressure, which is a composition of a pressure depending only on the volume fraction and a pressure derived from the dilatancy law together with the equation of state from the kinetic theory. Another novelty of this study is a new numerical scheme that can avoid numerical instability caused by large volume fractions. To demonstrate its capability, the present model is applied to simulate the collapse of a granular column with various aspect ratios. The evolution of the column shape, the flow field, the final height, and the run-out predicted by the present model agree well with those provided by discrete element methods and experiments.en
dc.format.extent23 p.en
dc.relation.ispartofseriesPhysics of Fluidsen
dc.rights© 2015 American Institute of Physics. This paper was published in Physics of Fluids and is made available as an electronic reprint (preprint) with permission of American Institute of Physics . The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en
dc.subjectCivil and Environmental Engineeringen
dc.titleA three-dimensional continuum model incorporating static and kinetic effects for granular flows with applications to collapse of a two-dimensional granular columnen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen
dc.description.versionPublished versionen
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