Effect of hysteresis and infiltration rate on finger dynamics
Journal
Eurasian Soil Science
Journal Volume
42
Journal Issue
13
Pages
1504-1514
Date Issued
2009
Author(s)
Abstract
A process was development for researching the finger dynamics using digital image analysis and the soil water content concept model. Nonuniform wetting front profile expanded vertically under the equalized potential head horizontally. Experimental data and the present concept model matched adequately. For extending the application of concept model, hysteresis models (Hogarth in 1988 and Huang in 2005) are compared. The initial temporal and spatial fingered velocity was faster with time under the same rainfall intensity, as well as fingered width. Besides, the mean fingered velocity also increase with rainfall intensity. The present concept model expounded the evolution of lingered flow and the hydraulic properties of linger dynamics successfully.
Type
journal article