Numerical study of non-reactive tracer transport in a heterogeneous field, with random microscopic dispersivity
Nakagawa, Kei LU
; Jinno, Kenji
; Hosokawa, Tosao
; Hatanaka, Koichiro
; Ijiri, Yuji
and Watari, Shingo
(1998)
In IAHS-AISH Publication
250.
p.567-574
- Abstract
One of the most important processes for the groundwater environment is macroscopic dispersion in geological media. In this study, laboratory experiments and numerical simulations are carried out in order to understand the transport of a non-reactive tracer in a heterogeneous porous medium. The method of characteristics and the implicit finite difference method are employed for numerical solutions of the advective-dispersion and the groundwater flow equation, respectively. The results of the computation agree with measurements and reveal that the applied numerical method is valid for mass transport in a heterogeneous porous medium. An evaluation of the macroscopic dispersion coefficient is also attempted. The relation between the... (More)
One of the most important processes for the groundwater environment is macroscopic dispersion in geological media. In this study, laboratory experiments and numerical simulations are carried out in order to understand the transport of a non-reactive tracer in a heterogeneous porous medium. The method of characteristics and the implicit finite difference method are employed for numerical solutions of the advective-dispersion and the groundwater flow equation, respectively. The results of the computation agree with measurements and reveal that the applied numerical method is valid for mass transport in a heterogeneous porous medium. An evaluation of the macroscopic dispersion coefficient is also attempted. The relation between the integral scale of the log-permeability and macroscopic dispersivity is examined. It is suggested that the macroscopic dispersion depends on the integral scale and that a sufficient observation scale is necessary for obtaining the converged macroscopic dispersion coefficient.
(Less)
- author
- Nakagawa, Kei
LU
; Jinno, Kenji
; Hosokawa, Tosao
; Hatanaka, Koichiro
; Ijiri, Yuji
and Watari, Shingo
- publishing date
- 1998-12-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- IAHS-AISH Publication
- volume
- 250
- pages
- 8 pages
- external identifiers
-
- scopus:0032423912
- ISSN
- 0144-7815
- language
- English
- LU publication?
- no
- id
- 7ad61376-5137-4e0b-93bc-deb45ac589c7
- date added to LUP
- 2019-01-02 01:41:31
- date last changed
- 2022-01-31 08:10:45
@article{7ad61376-5137-4e0b-93bc-deb45ac589c7,
abstract = {{<p>One of the most important processes for the groundwater environment is macroscopic dispersion in geological media. In this study, laboratory experiments and numerical simulations are carried out in order to understand the transport of a non-reactive tracer in a heterogeneous porous medium. The method of characteristics and the implicit finite difference method are employed for numerical solutions of the advective-dispersion and the groundwater flow equation, respectively. The results of the computation agree with measurements and reveal that the applied numerical method is valid for mass transport in a heterogeneous porous medium. An evaluation of the macroscopic dispersion coefficient is also attempted. The relation between the integral scale of the log-permeability and macroscopic dispersivity is examined. It is suggested that the macroscopic dispersion depends on the integral scale and that a sufficient observation scale is necessary for obtaining the converged macroscopic dispersion coefficient.</p>}},
author = {{Nakagawa, Kei and Jinno, Kenji and Hosokawa, Tosao and Hatanaka, Koichiro and Ijiri, Yuji and Watari, Shingo}},
issn = {{0144-7815}},
language = {{eng}},
month = {{12}},
pages = {{567--574}},
series = {{IAHS-AISH Publication}},
title = {{Numerical study of non-reactive tracer transport in a heterogeneous field, with random microscopic dispersivity}},
volume = {{250}},
year = {{1998}},
}