Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 300154
Title Lumped models of convective solute transport in heterogeneous porous media. 1. One-dimensional media
Author(s) Valk, C.F. de; Raats, P.A.C.
Source Water Resources Research 31 (1995)4. - ISSN 0043-1397 - p. 883 - 892.
Department(s) Research Institute for Agrobiology and Soil Fertility
Biometris (WU MAT)
Publication type Refereed Article in a scientific journal
Publication year 1995
Abstract Lumped models of convective solute transport in one-dimensional porous media are derived from the mass balance and the law of mass action. These models predict cumulative leaching from cumulative solute application and cumulative irrigation or rainfall. The solutes can be subject to adsorption or exchange governed by a nonlinear isotherm. The most important feature of the models is that although the properties of the medium and the liquid phase are allowed to be nonuniform, application requires only knowledge of the integrated moisture storage and adsorption isotherm over the medium section under consideration. Sufficient conditions are derived for the validity of lumped models and convenient expressions for evaluation of the model output are given. The results will be applied in part 2 of this paper, forthcoming, which will deal with convective solute transport along fixed streamlines in three-dimensional porous media.
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