3D random walk simulation of migration behavior of radionuclide in a granite core

Yoshimi Seida, Hiroyasu Takase, Hiroaki Takahashi, Yuichi Niibori

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

A 3D random walk simulation (RWS) of a heterogeneous intact rock system was performed to examine the influences of heterogeneity of the rock, such as spatial distribution of minerals and/or sorption sites and migration path, on its retardation behavior for diffusants. A cube based 3D granite model with heterogeneous mineral distribution was constructed based on the mineral composition and distribution of the Inada granite of Japan. Impulse responses of the 3D granite model for both sorptive and non-sorptive walker particles were obtained by the RWS and were evaluated in comparison with the breakthrough patterns of a simple 1D diffusion model in a homogeneous system with various retardation parameters.

Original languageEnglish
Pages (from-to)543-548
Number of pages6
JournalMaterials Research Society Symposium Proceedings
Volume1124
Publication statusPublished - 2009
Event2008 MRS Fall Meeting - Boston, MA, United States
Duration: 2008 Dec 22008 Dec 5

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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