Results 1 to 10 of about 965 (177)

Modeling of transpiration reduction in van Genuchten–Mualem type soils

Water Resources Research, 2009
We derive an analytic expression for the matric flux potential (M) for van Genuchten–Mualem (VGM) type soils which can also be written in terms of a converging infinite series. Considering the first four terms of this series, the accuracy of the approximation was verified by comparing it to values of M estimated by numerical finite difference ...
Quirijn De Jong van Lier, Klaas Metselaar   +1 more
exaly   +2 more sources

Identification of van Genuchten Model Fitting Parameters for Soil Water Characteristic Curve

Zairyo/Journal of the Society of Materials Science, Japan
Kazuaki Hioki
exaly   +2 more sources

An improved van Genuchten soil water characteristic model to account for surface adsorptive forces

Journal of Hydrology
Widely used models for the soil water characteristic (SWC), like the van Genuchten model, are primarily based on the assumption that soil pores resemble bundles of cylindrical capillary tubes. While such models effectively describe the wet part of a SWC, they often fail to accurately represent the dry part where water retention is primarily governed by
Asghar Ghorbani, Ebrahim Babaeian, Morteza Sadeghi   +2 more
exaly   +2 more sources

Conversion of the Modified Kovács Model Parameters to the Brooks and Corey and van Genuchten Model Parameters for the Water Retention Curve of Sandy and Silty Soils

Journal of Irrigation and Drainage Engineering - ASCE, 2013
Abdelkabir Maqsoud, Mamert Mbonimpa, Bruno Bussiere   +2 more
exaly  

Correspondence of the Gardner and van Genuchten–Mualem relative permeability function parameters

Water Resources Research, 2007
Teamrat A Ghezzehei, Timothy Kneafsey
exaly  

Analytical solution for steady vertical flux through unsaturated soils based on van Genuchten-Mualem model

Journal of Hydrology
Mohamed Hayek
exaly  

Van Genuchten模型参数对降水入渗数值模拟的敏感性

Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences, 2017
exaly  

Research on modified teaching-learning-based optimisation algorithm for estimating parameters of Van Genuchten equation

International Journal of Computational Science and Engineering, 2017
exaly  

Moisture‐dependent anisotropy calculations using the van Genuchten–Mualem model

Vadose Zone Journal, 2022
Variable, moisture‐dependent anisotropy in unsaturated media is an effective, large‐scale (macroscopic) flow property that results from media heterogeneities at a smaller scale.
Amena Mayenna, Raziuddin Khaleel
doaj   +2 more sources

A generalized van Genuchten model for unsaturated soil hydraulic conductivity

Vadose Zone Journal
The hydrodynamics of variably saturated soils or porous media in general are described via nonlinear functions of water retention and hydraulic conductivity, which facilitate the simulation of various mass and energy transport processes (e.g., water ...
Asghar Ghorbani, Morteza Sadeghi, Markus Tuller, Wolfgang Durner, Scott B. Jones   +4 more
doaj   +2 more sources