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Master's Dissertation
DOI
https://doi.org/10.11606/D.11.1977.tde-20240301-152306
Document
Author
Full name
Sidneide Manfredini
Institute/School/College
Date of Defense
Published
Piracicaba, 1977
Supervisor
Title in Portuguese
Infiltração da água em solos homogêneos: novo conceito
Keywords in Portuguese
ÁGUA DO SOLO
INFILTRAÇÃO
Abstract in Portuguese
Um novo conceito para a descrição analítica do processo de infiltração de água em solos homogêneos é apresentado. Este conceito, a partir da definição de uma “difusividade gravitacional” permite a generalização dos casos de infiltração horizontal e vertical. A eficiência do novo conceito na descrição do processo de infiltração, para intervalos de tempo curtos e intermediários é comprovada através de experimentos realizados em colunas de solo homogêneas. As vantagens da utilização deste conceito generalizado são evidenciadas pelo confronto entre os perfis de umidade por ele estimados, os obtidos segundo a solução numérica proposta por PHILLIP (1955, 1957) e os experimentais.
Abstract in English
A new concept is presented for the analytical description of the process of water infiltration into homogeneous soils. The concept uses a new definition of a “gravitational diffusivity” which permits the generalization of both cases, horizontal and vertical infiltration. The efficiency of the new concept in describing the infiltration process, for short and intermediate times, is proved through experimental data obtained during water infiltration into air-dry soil columns. Its advantages are discussed comparing soil water contents predicted by the numerical solution proposed by PHILLIP (1955, 1957).
 
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Publishing Date
2024-03-14
 
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