The Similarity Hypothesis and New Analytical Support on the Estimation of Horizontal Infiltration into Sand

Autor: Celso L. Prevedello, Jocely M. T. Loyola
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: Applied and Environmental Soil Science, Vol 2010 (2010)
Druh dokumentu: article
ISSN: 1687-7667
1687-7675
DOI: 10.1155/2010/657402
Popis: A method based on a specific power-law relationship between the hydraulic head and the Boltzmann variable, presented using a similarity hypothesis, was recently generalized to a range of powers to satisfy the Bruce and Klute equation exactly. Here, considerations are presented on the proposed similarity assumption, and new analytical support is given to estimate the water density flux into and inside the soil, based on the concept of sorptivity and on Buckingham-Darcy's law. Results show that the new analytical solution satisfies both theories in the calculation of water density fluxes and is in agreement with experimental results of water infiltrating horizontally into sand. However, the utility of this analysis still needs to be verified for a variety of different textured soils having a diverse range of initial soil water contents.
Databáze: Directory of Open Access Journals
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