Upscaling polydispersed particle transport in porous media using pore network model
- Abstract
- Understanding particle transport in porous media is critical in the sustainability of many geotechnical and geoenvironmental
infrastructure. To date, the determination of the first-order rate coefficients in the advection?dispersion equation for
simulating attachment and detachment of particles in saturated porous media typically has been relied on the result of
laboratory-scale experiments. However, to determine attachment and detachment coefficients under varied hydraulic and
geochemical variables, this method requires a large experimental matrix because each test provides only one set of
attachment and detachment coefficients. The work performed in this study developed a framework to upscale the results
obtained in pore-scale modeling to the continuum scale through the use of a pore network model. The developed pore
network model incorporated variables of mean particle size, the standard deviation of particle size distribution, and
interparticle forces between particles and sand grains. The obtained retention profiles using the pore network model were
converted into attachment coefficients in the advection?dispersion equation for long-term and large-scale simulation.
Additionally, by tracking individual particles during and after the simulation, the pore network model introduced in this
study can also be employed for modeling the clogging phenomenon, as well as fundamental investigation of the impact of
particle size distribution on particle retention in the sand medium.
- Author(s)
- 원종묵; Junghwoon Lee; Susan E. Burns
- Issued Date
- 2021
- Type
- Article
- Keyword
- First-order coefficient; Particle size distribution; Particle transport; Pore network; Upscaling
- DOI
- 10.1007/s11440-020-01038-z
- URI
- https://oak.ulsan.ac.kr/handle/2021.oak/9190
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_gale_infotracacademiconefile_A650783330&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Upscaling%20polydispersed%20particle%20transport%20in%20porous%20media%20using%20pore%20network%20model&offset=0&pcAvailability=true
- Authorize & License
-
- Files in This Item:
-
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.