An adaptive time discretization of the classical and the dual porosity model of Richards’ equation

A Closed‐form Equation for Predicting the Hydraulic Conductivity of Unsaturated Soils

Martinus Th. van Genuchten · Soil Science Society of America Journal · 1980 · 26.8K citations

Geotechnical Engineering, Unsaturated Soils, Hydraulic Conductivity +15

A new model for predicting the hydraulic conductivity of unsaturated porous media

Yechezkel Mualem · Water Resources Research · 1976 · 8.1K citations

Engineering, Residual Water Content, Hydraulics +16

CAPILLARY CONDUCTION OF LIQUIDS THROUGH POROUS MEDIUMS

L. A. Richards · Physics · 1931 · 6.2K citations

Engineering, Fluid Mechanics, Porous Medium Equations +16

Basic concepts in the theory of seepage of homogeneous liquids in fissured rocks [strata]

Iu.P Zheltov, I. N. Kochina · Journal of Applied Mathematics and Mechanics · 1960 · 2.9K citations

Homogeneous Liquids, Engineering, Mineral-fluid Interaction +6

A general mass‐conservative numerical solution for the unsaturated flow equation

Michael A. Celia, Efthimios T. Bouloutas, Rebecca Lynne Zarba · Water Resources Research · 1990 · 1.7K citations

Numerical Analysis, Engineering, Fluid Properties +9