2009
DOI: 10.1623/hysj.54.2.349
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Remarks upon numerical solutions of infiltration into a soil profile

Abstract: A methodology of time-step estimation for numerically solving the Richards equation is discussed. Its importance in simulating water movement in unsaturated-saturated soils is shown for infiltration into a soil profile by applying various time-step estimations and boundary conditions for different soils. In order to test the results of the computations, infiltration theory was applied. According to infiltration theory, the pressure head in the initially unsaturated part will not take positive values as long as… Show more

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“…The technique of finger phase field by gravity is used by 22% of the 23 articles that shows modeling by physical theories (Cueto-Felgueroso and Juanes, 2009a;2009b;Eliassi and Glass, 2003;Furst et al, 2009;Glass and Yarrington, 2003) and 40% of the 32 articles that show models based on partial differential equations solving employ the techniques of: Laplace transforms (Fytius and Smith, 2001;Ginting, 2012;Jenkins et al,2001;Nikzad et al , 2016;Srivastava and Yeh, 1991;Wu et al, 2012;Zaradny, 2008;and Pedotransfer functions (Baker and Ellison, 2008;Dashtaki et al, 2010;Dhikary et al, 2008;Haghverdi et al, 2012;Schaap and Leji, 1998;Tomasella et al , 2003).…”
Section: Introductionmentioning
confidence: 99%
“…The technique of finger phase field by gravity is used by 22% of the 23 articles that shows modeling by physical theories (Cueto-Felgueroso and Juanes, 2009a;2009b;Eliassi and Glass, 2003;Furst et al, 2009;Glass and Yarrington, 2003) and 40% of the 32 articles that show models based on partial differential equations solving employ the techniques of: Laplace transforms (Fytius and Smith, 2001;Ginting, 2012;Jenkins et al,2001;Nikzad et al , 2016;Srivastava and Yeh, 1991;Wu et al, 2012;Zaradny, 2008;and Pedotransfer functions (Baker and Ellison, 2008;Dashtaki et al, 2010;Dhikary et al, 2008;Haghverdi et al, 2012;Schaap and Leji, 1998;Tomasella et al , 2003).…”
Section: Introductionmentioning
confidence: 99%