Results 131 to 140 of about 507 (178)

Rainfall infiltration of multi-layer soil slope with an modified green-Ampt model

KSCE Journal of Civil Engineering
Gang Huang, Qiang Ma, Yuancheng Wu
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The motion of a wetting front for a green-ampt model of infiltration into a cracked soil

, 1984
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Modification and discussion of the Green-Ampt model for an evolving wetting profile

Hydrological Sciences Journal, 2020
The Green-Ampt (GA) model has been widely used to evaluate soil water infiltration. While a simple piston profile is commonly used, the wetting profile of a soil changes during infiltration and a q...
Wenwu Chen, Qiyong Zhang
exaly   +2 more sources

Exploring the parameter space of the Green–Ampt model

Advances in Water Resources, 2013
This study systematically investigates the entire parameter space of the Green–Ampt model for water infiltration and allows for arbitrary constant hydraulic head boundary conditions, any column inclination, hydrophilic and hydrophobic porous media, and a nonzero initial cumulative infiltration.
Markus Hilpert
exaly   +2 more sources

A modified Green-Ampt infiltration model for muddy water

Journal of Hydrology
Shouxuan Kang, Liangjun Fei, Yun Zhong, Penghui Zhao, Zhen Yang, Qianwen Fan   +5 more
exaly   +2 more sources

DEVELOPMENT OF A CRUST FACTOR FOR A GREEN AMPT MODEL

Transactions of the ASAE, 1990
ABSTRACT The formation of a soil crust has been shown to cause a major decrease in infiltration and needs to be accounted for in infiltration models. In response to this need, a procedure based on such properties and wetted front depth was developed for incorporating the steady state crust conductivity into the hydraulic conductivity term of the Green ...
null W. J. Rawls, null D. L. Brakensiek, null J. R. Simanton, null K. D. Kohl   +3 more
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Green‐Ampt—Model to Predict Surge Irrigation Phenomena

Journal of Irrigation and Drainage Engineering, 1987
A significant advantage attributed to surge flow irrigation is that for the same volume of water applied the stream will advance farther along the furrow than with continuous flow. Where this advance phenomenon exists, the reduction in runoff and deep percolation will improve uniformity and application efficiency.
M. A. Killen, D. C. Slack
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Application of the Green–Ampt model for infiltration into layered soils

Journal of Hydrology, 2015
Summary Using the Green–Ampt model for layered soils, a theoretical method is proposed to estimate the layers’ hydraulic parameters based on infiltration test data. To evaluate the proposed method and to investigate the effect of the layers’ permeability on infiltration, constant head infiltration tests were conducted on six different two-layered ...
Jahanshir Mohammadzadeh-Habili, Manouchehr Heidarpour   +1 more
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Explicit infiltration equations based on the Green–Ampt model

Canadian Journal of Civil Engineering, 1987
The Green–Ampt infiltration equations are based on physical parameters of the soil that can be either measured or calculated reasonably easily. However, neither the infiltration rate equation nor the cumulative depth of infiltration equation is in a form that can be used easily in hydrologic modeling, as both equations are in an implicit form when ...
K. P. Thooyamani, D. I. Norum
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Modified Green-Ampt Infiltration Model for Steady Rainfall

Journal of Hydrologic Engineering, 2014
AbstractThe Green-Ampt equation describing the infiltration of water into soil requires that the rainfall intensity is greater than the infiltration capacity of the soil at all times. The well-known Mein-Larson model modifies the Green-Ampt equation and attempts to avoid this restriction for infiltration of water into a homogeneous soil under rainfall ...
J. Almedeij, I. I. Esen
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