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Generalized Transfer Function Model for Solute Transport in Heterogeneous Soils

Renduo Zhang

Department of Renewable Resources, University of Wyoming, Laramie, WY 82071-3354 USA



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Fig. 1 Relationships of (a) {lambda}µ and (b) {lambda}{sigma} as functions of l/z and the standard deviation of lnt at depth l ({sigma}l) for the CDE ({lambda}1 = 1 and {lambda}2 = 0.5). The values of {sigma}l are shown on the curves

 


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Fig. 2 Relationships of (a) {lambda}µ and (b) {lambda}{sigma} as functions of l/z and the standard deviation of lnt at depth l ({sigma}l) for the GTF ({lambda}1 = 0.5 and {lambda}2 = 1). The values of {sigma}l are shown on the curves

 


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Fig. 3 Prediction of the convection–dispersion equation (CDE) (V = 1 and D = 5) at different depths using the generalized transfer function model (GTF)

 


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Fig. 4 Prediction of the convection–dispersion equation (CDE) (a convection-dominated problem: V = 10 and D = 1) at different depths using the generalized transfer function model (GTF)

 


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Fig. 5 Comparison of predicted results of the convection–dispersion equation (CDE) using the generalized transfer-function model (GTF) and the extended transfer function model (ETFM) with a = 0.5 (Liu and Dane, 1996)

 


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Fig. 6 Comparison of experimental data in the homogeneous soil column and predicted results of the generalized transfer function model (GTF) and convection–dispersion equation (CDE)

 


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Fig. 7 Comparison of experimental data in the heterogeneous soil column and predicted results of the generalized transfer function model (GTF)

 





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