Advanced Modeling of Water Flow and Solute Transport in Variably-unsaturated Media PDF Download

Author: Martinus Th. van Genuchten
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 131

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Abstract titles are: Recent developments in modeling variably saturated flow and transport; Unsaturated flow modeling as applied to field problems; Coupled heat and moisture transport in unsaturated soils; Influence of climatic parameters on movement of radionuclides in a multilayered saturated-unsaturated media; Modeling water and solute transport in soil containing roots; Simulation of consolidation in partially saturated soil materials; modeling of water and solute transport in unsaturated heterogeneous fields; Fluid dynamics and mass transfer in variably-saturated porous media; Solute transport through soils; One-dimensional analytical transport modeling; Convective transport of ideal tracers in unsaturated soils; Chemical transport in macropore-mesopore media under partially saturated conditions; Influence of the tension-saturated zone on contaminant migration in shallow water regimes; Influence of the spatial distribution of velocities in porous media on the form of solute transport; Stochastic vs deterministic models for solute movement in the field; and Stochastic analysis of flow and solute transport. (DMC).

Author: Adam Szymkiewicz
Publisher: Springer Science & Business Media
ISBN: 3642235581
Category : Science
Languages : en
Pages : 254

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The book focuses on two issues related to mathematical and numerical modelling of flow in unsaturated porous media. In the first part numerical solution of the governing equations is discussed, with particular emphasis on the spatial discretization of highly nonlinear permeability coefficient. The second part deals with large scale flow in heterogeneous porous media of binary structure. Upscaled models are developed and it is shown that the presence of material heterogeneities may give rise to additional non-equilibrium terms in the governing equations or to hysteresis in the averaged constitutive relationships.

Author: Eidgenössische Anstalt für Wasserversorgung, Abwasserreinigung und Gewässerschutz (Dübendorf).
Publisher:
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Category :
Languages : de
Pages :

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Author: Nguyen Duy Binh
Publisher: LAP Lambert Academic Publishing
ISBN: 9783847313236
Category :
Languages : en
Pages : 292

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The book focusses on one of the most complex and difficult problems in subsurface flow: the transport of water and dissolved substances through unsaturated soils. The predominantly vertical flow in the unsaturated zone is governing the processes of groundwater recharge as well as the input of any kind of waterborn substances that may be transported from the surface through the unsaturated zone into the groundwater body. The book focusses on analyzing the transport of water and solutes in unsaturated-saturated porous media with special emphasis on macropore effects due to plant roots - a significant effect in agricultural areas. Another specific strength of the present book is to be seen in the fact that a unique set of relatively large soil column tests has been conducted in a field setup, in which the effect of decayed plant roots channels on solute transport processes was investigated. These intensive field tests and the new results derived from the experiments provide a significant step forward in our understanding and quantification of the role of macropores connected with plant root channels.

Author: A. I. El-Kadi
Publisher:
ISBN:
Category :
Languages : en
Pages : 27

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Author: Jos C. van Dam
Publisher:
ISBN: 9789058082565
Category :
Languages : en
Pages : 167

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Author: Adam Szymkiewicz
Publisher: Springer Science & Business Media
ISBN: 364223559X
Category : Science
Languages : en
Pages : 254

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Book Description
The book focuses on two issues related to mathematical and numerical modelling of flow in unsaturated porous media. In the first part numerical solution of the governing equations is discussed, with particular emphasis on the spatial discretization of highly nonlinear permeability coefficient. The second part deals with large scale flow in heterogeneous porous media of binary structure. Upscaled models are developed and it is shown that the presence of material heterogeneities may give rise to additional non-equilibrium terms in the governing equations or to hysteresis in the averaged constitutive relationships.

Author: Todd C. Rasmussen
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 193

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