dc.contributor.author | Suciu, Nicolae | |
dc.contributor.author | Schüler, Lennart | |
dc.contributor.author | Radu, Adrian Florin | |
dc.contributor.author | Attinger, Sabine | |
dc.contributor.author | Vamo̧s, Cǎlin | |
dc.contributor.author | Knabner, Peter | |
dc.date.accessioned | 2016-08-03T12:10:25Z | |
dc.date.available | 2016-08-03T12:10:25Z | |
dc.date.issued | 2015 | |
dc.Published | Analele Universităţii "Ovidius" Constanţa. Seria Matematică 2015, 23(3):187-208 | eng |
dc.identifier.issn | 1844-0835 | en_US |
dc.identifier.uri | https://hdl.handle.net/1956/12420 | |
dc.description.abstract | Concentrations of chemical species transported in random environments need to be statistically characterized by probability density functions (PDF). Solutions to evolution equations for the one-point one-time PDF are usually based on systems of computational particles described by It^o equations. We establish consistency conditions relating the concentration statistics to that of the It^o process and the solution of its associated Fokker-Planck equation to that of the PDF equation. In this frame, we use a recently proposed numerical method which approximates PDFs by particle densities obtained with a global random walk (GRW) algorithm. The GRW-PDF approach is illustrated for a problem of contaminant transport in groundwater. | en_US |
dc.language.iso | eng | eng |
dc.publisher | Tipografia Universitatii Ovidius | en_US |
dc.rights | Attribution CC BY-NC-ND | eng |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/ | eng |
dc.subject | PDF methods | eng |
dc.subject | Mixing | eng |
dc.subject | random walk | eng |
dc.subject | Porous media | eng |
dc.title | Consistency issues in pdf methods | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.date.updated | 2016-04-07T13:25:01Z | |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Copyright 2015 Tipografia Universitatii Ovidius | en_US |
dc.identifier.doi | https://doi.org/10.1515/auom-2015-0055 | |
dc.identifier.cristin | 1332905 | |