منابع مشابه
State-space mixing cell model of unsteady solute transport in unsaturated soil
The purpose of this model is to enable implementation of the theory of linear systems control in operational management of waste and fertiliser applications onto land, so that the underlying groundwater is protected from pollution by leachate. The state-space form of the model enables use of the extensive theory and available software on stochastic linear S)lstCms. In particular, the Kalman fil...
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solute transport in unsaturated porous media can be viewed as a coupled phenomenon with waterand heat transport, together with mechanical behaviour of media. in this paper, solute transport is formulatedmathematically considering heat and water flow in deformable porous media. advection, dispersion anddiffusion of chemical species in the liquid phase are considered. convection and conduction fo...
متن کاملSolute Transport in Unsaturated Soil: Experimental Design, Parameter Estimation, and Model Discrimination
The objectives of this study were to: (i) examine the efficacy of two sampling techniques for characterizing solute transport under steady-state water flow, (ii) study the variation in transport model parameters with increasing depth of solute leaching, and (iii) perform model discrimination to examine the transport process operative within a field plot. Bromide, NO?, and Clwere applied sequent...
متن کاملCharacterization of preferential solute transport in soil
CHAPTER L GENERAL INTRODUCTION 1 [ntroduction I Dissertation Organization 4 References 5 CHAPTER 2. EVALUATION OF A SIMPLE METHOD FOR ESTIMATING SOLUTE TRANSPORT PAR.\>4ETERS: LABORATORY STUDIES 9 Abstract 9 [ntroduction 10 Materials and Methods 13 Results and Discussion 16 Conclusions 22 References 23 CHAPTER 3. A TIME DOMAIN REFLECTOMETRY METHOD TO MEASURE IMMOBILE WATER CONTENT AND MASS EXCH...
متن کاملSolute transport along preferential flow paths in unsaturated fractures
Laboratory experiments were conducted to study solute transport along preferential flow paths in unsaturated, inclined fractures. Qualitative aspects of solute transport were identified in a miscible dye tracer experiment conducted in a transparent replica of a natural granite fracture. Additional experiments were conducted to measure the breakthrough curves of a conservative tracer introduced ...
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ژورنال
عنوان ژورنال: PROCEEDINGS OF HYDRAULIC ENGINEERING
سال: 1996
ISSN: 0916-7374,1884-9172
DOI: 10.2208/prohe.40.455