Discrete and continuum modeling of sand flow experiment

Shuji Moriguchi, Ronaldo I. Borja, Atsushi Yashima, Kazuhide Sawada, Kenichi Oda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Prediction of runout distance of sediment sliding down a slope is useful for estimating damage caused from natural disasters. In this study, continuum modeling based on Computational Fluid Dynamics (CFD) and discrete modeling based on the Discrete Element Method (DEM) are used to reproduce the flow of dry sand down a slope. Parametric studies are conducted for the two simulations. It is observed that the flow behavior strongly depends on the values of elastic and damping coefficients for the discrete model. On the other hand, the flow behavior depends significantly on the value of the bottom friction for the continuum model.

Original languageEnglish
Title of host publicationGeomechanics and Geotechnics
Subtitle of host publicationFrom Micro to Macro - Proceedings of the International Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010
Pages531-536
Number of pages6
Publication statusPublished - 2011 Dec 1
Externally publishedYes
EventInternational Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010 - Shanghai, China
Duration: 2010 Oct 102010 Oct 12

Publication series

NameGeomechanics and Geotechnics: From Micro to Macro - Proceedings of the International Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010
Volume1

Other

OtherInternational Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010
Country/TerritoryChina
CityShanghai
Period10/10/1010/10/12

Keywords

  • Computational fluid dynamics
  • Discrete element method
  • Granular flow

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

Fingerprint

Dive into the research topics of 'Discrete and continuum modeling of sand flow experiment'. Together they form a unique fingerprint.

Cite this