飽和多孔媒体モデルにおけるDNAPL重力分散に関する実験的研究 <民間機関との共同研究>

DOI 機関リポジトリ

抄録

type:text

Gravitational dispersion may play significant role in DNAPL (dense non-aqueous phase liquid) transport in groundwater. Fingering and droplet settlement are two examples on gravitational dispersion of DNAPL in groundwater environment. Gravitational dispersion of small spherical solid particles and TCE droplets through water-saturated porous medium models are dealt in this paper. The experimental 'set-up consisted of single-layered glass sphere media and visualizing equipments with high accuracy. The experimental results, based on ergodic theorem, are compared with analytical solution of one-dimensional gravitational dispersion equation. The results showed that dispersion of the particles and droplets could be well characterized by the present study. Values ofnon-dimensional ratio (Dz/v, v: kinematic viscosity) for solid particles and TCE droplets varied from 10 to 30, and 4 to 5.5, respectively. Particle and droplet Reynolds number varied between 74 and 230 in both cases..

収録刊行物

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ