Evaluation of the Intrinsic‐Penetrability and ‐Diffusivity Concepts To Predict Horizontal Infiltration in Porous Media
Abstract
The equations λ = λi[(γ/η) cos H]½ and D = Di[(γ/η) cos H] have been presented to describe the effect of surface tension, γ, viscosity, η, and solid‐liquid contact angle, H, on penetrability, λ, and diffusivity D, where λi and Di are the intrinsic penetrability and diffusivity, respectively. The equations were tested by studying horizontal liquid‐infiltration at 2 mbars suction of nine organic liquids and 0.01N CaSO4 in glass beads, Pachappa clay loam, and a water‐repellent soil. The equations were found to describe infiltration quite well for all liquids studied in glass beads and Pachappa soil. The equations apply to organic liquids but not to 0.01N CaSO4 in a water‐repellent soil.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 01, 1970
- Source ID
- 10.2136/sssaj1970.03615995003400030010x
Entities
People
- C. L. Watson
- J. Letey
- Mustafa Mustafa
Organizations
- United States Department of Agriculture
- United States Department of Defense
- United States Forest Service