Modelling Water Flow in Unsaturated Porous Media [electronic resource] :Accounting for Nonlinear Permeability and Material Heterogeneity / by Adam Szymkiewicz.
by Szymkiewicz, Adam [author.]; SpringerLink (Online service).
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BookSeries: GeoPlanet: Earth and Planetary Sciences: Publisher: Berlin, Heidelberg : Springer Berlin Heidelberg : 2013.Description: XXI, 237 p. 73 illus., 32 illus. in color. online resource.ISBN: 9783642235597.Subject(s): Geography | Physical geography | Hydraulic engineering | Earth Sciences | Hydrogeology | Geophysics/GeodesyDDC classification: 551.4 Online resources: Click here to access online | Item type | Current location | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|
| MAIN LIBRARY | GB1001-1199.8 (Browse shelf) | Available |
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Introduction -- Mathematical Models of Flow in Porous Media -- Numerical Solution of Flow Equations -- Computation of Inter-Nodal Permeabilities for Richards Equation -- Upscaling from Darcy Scale to Field Scale -- Flow in Binary Media with Heterogenous Hydraulic Diffusivity -- Flow in Binary Media with Heterogenous Air-Entry Pressure.
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.
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