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https://hdl.handle.net/20.500.14094/90007862
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2024-03-29
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90007862 (fulltext)
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メタデータID
90007862
アクセス権
open access
出版タイプ
Version of Record
タイトル
Experimental assessment of solute dispersion in stratified porous media
著者
Kurasawa, Tomoki ; Suzuki, Mariko ; Inoue, Kazuya
著者名
Kurasawa, Tomoki
著者ID
A2374
研究者ID
1000050756658
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/profile/ja.a04630a0577f4608520e17560c007669.html
著者名
Suzuki, Mariko
鈴木, 麻里子
スズキ, マリコ
所属機関名
農学研究科
著者ID
A1048
研究者ID
1000000362765
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/profile/ja.9cd7040446d0f1ac520e17560c007669.html
著者名
Inoue, Kazuya
井上, 一哉
イノウエ, カズヤ
所属機関名
農学研究科
収録物名
Hydrological Research Letters
巻(号)
14(4)
ページ
123-129
出版者
Japan Society of Hydrology and Water Resources (JSHWR)
Japanese Association of Groundwater Hydrology (JAGH)
Japanese Association of Hydrological Sciences (JAHS)
Japanese Society of Physical Hydrology (JSPH)
刊行日
2020
公開日
2021-02-16
抄録
The objective of this paper is to evaluate effects of stratified porous formation on solute dispersion using two-dimensional laboratory tracer tests. An image analysis technique was used to analyze the solute dispersion processes and quantify the dispersivity and behaviors of forward and backward tails of solute plumes. Longitudinal dispersivity estimates for the stratified porous media increased with travel distance and are in reasonable agreement with previous work. Moreover, in all of the stratified cases the transverse dispersivity exhibited a similar trend which decayed with travel distance. The summary of dispersivities estimated from this study and previous studies suggests that if both degree of heterogeneity and scale for stratified and randomly heterogeneous porous media are similar, the longitudinal dispersivity is larger in stratified media than in randomly heterogeneous media. In order to quantify behaviors of forward and backward tails, we defined the travel distances x05 and x95 corresponding to the 5th and 95th percentiles, respectively, of the cumulative concentrations in the longitudinal direction, and found that the distance between x05 and x95 spread out linearly in the stratified cases.
キーワード
solute dispersion
stratified porous media
laboratory-scale experiments
image analysis technique
dispersivity
solute plume tails
カテゴリ
農学研究科
学術雑誌論文
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© The Author(s) 2020.
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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資源タイプ
journal article
言語
English (英語)
eISSN
1882-3416
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関連情報
DOI
https://doi.org/10.3178/hrl.14.123
NAID
130007923600
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