Simulation of upward seepage flow in a single column of spheres using discrete-element method with fluid-particle interaction

Kiichi Suzuki, Jean P. Bardet, Masanobu Oda, Kazuyoshi Iwashita, Yutaka Tsuji, Toshitsugu Tanaka, Toshihiro Kawaguchi

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

The interaction between soil particles and pore water makes the behavior of saturated and unsaturated soil complex. In this note, upward seepage flow through a granular material was idealized using a one-column particle model. The motion of the individual particles was numerically simulated using the discrete-element method taking the interaction with the fluid into account. The fluid behavior was simulated by the Navier-Stokes equation using the semi-implicit method for pressure-linked equation. This approach has already been applied in powder engineering applications. However, there are very few studies that have used this approach in geotechnical engineering. This note first describes the qualitative and quantitative validation of this method for hydraulic gradients below the critical one by comparing the results with an analytical solution. Then, the ability of the method to simulate the macroscale behavior due to the interaction between particles and pore water at hydraulic gradients exceeding the critical hydraulic gradient is discussed.

Original languageEnglish (US)
Pages (from-to)104-109
Number of pages6
JournalJournal of Geotechnical and Geoenvironmental Engineering
Volume133
Issue number1
DOIs
StatePublished - Jan 1 2007
Externally publishedYes

Keywords

  • Discreet elements
  • One dimensional flow
  • Seepage
  • Simulation
  • Two phase flow

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Environmental Science(all)

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