Article (Scientific journals)
Review of the use of Peclet numbers to determine the relative importance of advection and diffusion in low permeability environments
Huysmans, Marijke; Dassargues, Alain
2005In Hydrogeology Journal, 13 (5-6), p. 895-904
Peer Reviewed verified by ORBi
 

Files


Full Text
PecletpaperHJ.pdf
Author preprint (383.46 kB)
The original publication is available at www.springerlink.com
Download

We acknowledge Springer. The original paper can be found on www.springerlink.com


All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
solute transport; analytical solutions; low permeability units; diffusion; groundwater
Abstract :
[en] In low permeability environments, transport by advection is often neglected based on a Peclet number criterion. Such a criterion usually states that if the Peclet number (Pe) is much smaller than 1, diffusion dominates over advection and transport may be modeled considering diffusion only. Unfortunately, up to 10 different Peclet number definitions exist and for a particular case these different definitions lead to very diverse Peclet number values, differing several orders of magnitude from each other. In this paper, the different Peclet number definitions are therefore evaluated on their ability to determine the relative importance of transport by advection and by diffusion in low permeability environments. This is done by comparing the results of the analytical solution for pure diffusion with the analytical solution for diffusion, advection and dispersion for a large number of different input parameter values. The relation between the different Peclet numbers and the difference between the calculated concentration considering diffusion only and the calculated concentration considering both diffusion and advection is studied. These calculations show that some Peclet number definitions are not well suited to decide whether advection may be neglected in low permeability media.
Research center :
Aquapôle - ULiège
Disciplines :
Geological, petroleum & mining engineering
Author, co-author :
Huysmans, Marijke;  Katholieke Universiteit Leuven - KUL > Geologie-Geografie > Hydrogeologie en Ingenieursgeologie
Dassargues, Alain  ;  Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Hydrogéologie & Géologie de l'environnement
Language :
English
Title :
Review of the use of Peclet numbers to determine the relative importance of advection and diffusion in low permeability environments
Publication date :
October 2005
Journal title :
Hydrogeology Journal
ISSN :
1431-2174
Publisher :
Springer, New York, United States - New York
Volume :
13
Issue :
5-6
Pages :
895-904
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 02 January 2009

Statistics


Number of views
255 (10 by ULiège)
Number of downloads
16872 (13 by ULiège)

Scopus citations®
 
121
Scopus citations®
without self-citations
119
OpenCitations
 
89

Bibliography


Similar publications



Contact ORBi