Numerical Simulation of Contaminant Dynamic Transfer in Dual-Domain Model

Abstract:

Preferential flowpaths (PFP) causes highly heterogeneity of soil. In this study a preferential flowpaths generalized model has been established, based on dual-domain model (DDM) which reflects contaminant transport and the dynamic transfer between mobile and immobile domains, quantitatively analyses the contaminant mass transfer in pore scale at three different conditions. Besides, define relative hydraulic conductivity reflect the impact of PFP physical parameters, results show that it can affect the contaminant transport form and the distribution of contaminant concentration.

• Periodical: Advanced Materials Research (Volumes 864-867)
• Pages: 1379-1385
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.864-867.1379
• Online since: December 2013
• Authors: Peng Wei Zhang*, Qing Bo Wen, Li Ming Hu
• Keywords: Contaminant Transport, Dual-Domain Model, Dynamic Mass Transfer, Heterogeneous Soil, Preferential Flowpaths

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