Non-Stationary Contaminant Plumes in the Advective-Diffusive Regime

Iván Alhama, Gonzalo García-Ros and Matteo Icardi
Additional contact information
Iván Alhama: Mining and Civil Engineering Department, Technical University of Cartagena, 30201 Murcia, Spain
Gonzalo García-Ros: Mining and Civil Engineering Department, Technical University of Cartagena, 30201 Murcia, Spain
Matteo Icardi: School of Mathematical Sciences, University of Nottingham, Nottingham NG7 2RD, UK

Mathematics, 2021, vol. 9, issue 7, 1-25

Abstract: Porous media with low/moderate regional velocities can exhibit a complex dynamic of contamination plumes, in which advection and molecular diffusion are comparable. In this work, we present a two-dimensional scenario with a constant concentration source and impermeable upper and lower boundaries. In order to characterise the plume patterns, a detailed discriminated dimensionless technique is used to obtain the dimensionless groups that govern the problem: an aspect ratio of the domain including characteristic lengths, and two others relating time and the horizontal length of the spread of contamination. The monomials are related to each other to enable their dependences to be translated into a set of new universal abacuses. Extensive numerical simulations were carried out to check the monomials and to plot these type curves. The abacuses provide a tool to directly manage the contamination process, covering a wide spectrum of possible real cases. Among other applications of interest, they predict the maximum horizontal and transversal plume extensions and the time-spatial dependences of iso-concentration patterns according to the physical parameters of the problem.

Keywords: contamination plume; advection-diffusion; universal curves (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2227-7390/9/7/725/pdf (application/pdf)
https://www.mdpi.com/2227-7390/9/7/725/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jmathe:v:9:y:2021:i:7:p:725-:d:525456

Access Statistics for this article

Mathematics is currently edited by Ms. Emma He

More articles in Mathematics from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().