Existing stochastic models of unsaturated flow and transport are usually developed using the simple Gardner-Russo constitutive relationship though it is generally accepted that the more complex van Genuchten and Brooks-Corey relationships may perform better in describing experimental data. In this paper, we develop first-order stochastic models for gravity-dominated flow in second-order station...

As the competing interests for only the previous calendar year were included in the published article and it is journal policy to list competing interests for the previous five years, a full declaration of interests for the authors is now published. As the competing interests for only the previous calendar year were included in the published article [1] and it is journal policy to list competin...

Abstract Universality, a desirable feature in any system. For decades, elusive measurements of three-phase flows have yielded countless permeability models that describe them. However, the equations governing solution water and gas co-injection has robust structure. This universal structure stands for Riemann problems green oil reservoirs. In past we established large class three phase flow inc...

abstract water retention curve (wrc) is a fundamental property of soil. it is used to evaluate available water, permeability, drainage and movement of solutes. despite numerous studies on wrc of soils abroad, no local study has been carried out on charmahal-va-bakhtiari soils. the objective of this study was to compare the quality of fitting of several wrc models to lordegan soils and to select...