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Do we really need a large number of particles to simulate bimolecular reactive transport with random walk methods? A kernel density estimation approach

Author
Rahbaralam, M.; Fernandez, D.; Sanchez-Vila, X.
Type of activity
Journal article
Journal
Journal of computational physics
Date of publication
2015-12
Volume
303
First page
95
Last page
104
DOI
https://doi.org/10.1016/j.jcp.2015.09.030 Open in new window
Project funding
Demonstrating manager aquifer recharge as a solution to water scarcity and drought
Transient flow enhanced aquifer remediation
Repository
http://hdl.handle.net/2117/81681 Open in new window
URL
http://www.sciencedirect.com/science/article/pii/S0021999115006233 Open in new window
Abstract
Random walk particle tracking methods are a computationally efficient family of methods to solve reactive transport problems. While the number of particles in most realistic applications is in the order of 106–109106–109, the number of reactive molecules even in diluted systems might be in the order of fractions of the Avogadro number. Thus, each particle actually represents a group of potentially reactive molecules. The use of a low number of particles may result not only in loss of accurac...
Citation
Rahbaralam, M., Fernandez, D., Sanchez, F. Do we really need a large number of particles to simulate bimolecular reactive transport with random walk methods? A kernel density estimation approach. "Journal of computational physics", Desembre 2015, vol. 303, p. 95-104.
Keywords
Kernel density estimators, Particle tracking, Reactive transport
Group of research
GHS - Hydrogeology Group

Participants

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