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Raindrop and flow interactions for interrill erosion with wind-driven rain
Wind-driven rain (WDR) experiments were conducted to evaluate the interrill component of the Water Erosion Prediction Project model with a two-dimensional experimental set-up in a wind tunnel. Synchronized wind and rain simulations were applied to soil surfaces on windward and leeward slopes of 7, 15 and 20%. Since WDR fall trajectory varied with horizontal wind velocities of 6, 10, and 14 m s−1, magnitude of raindrop normal and lateral stresses on flow at the impact-flow boundary also changed and differentially directed lateral jets of raindrop splashes with respect to downward flows occurred. To account for interactions between raindrop impact and interrill shallow flow, a vector approach with kinetic energy fluxes of both raindrop splashes and flow were used and this resulted in greater correlations in predicting sediment delivery rates.
Raindrop and flow interactions for interrill erosion with wind-driven rain
Wind-driven rain (WDR) experiments were conducted to evaluate the interrill component of the Water Erosion Prediction Project model with a two-dimensional experimental set-up in a wind tunnel. Synchronized wind and rain simulations were applied to soil surfaces on windward and leeward slopes of 7, 15 and 20%. Since WDR fall trajectory varied with horizontal wind velocities of 6, 10, and 14 m s−1, magnitude of raindrop normal and lateral stresses on flow at the impact-flow boundary also changed and differentially directed lateral jets of raindrop splashes with respect to downward flows occurred. To account for interactions between raindrop impact and interrill shallow flow, a vector approach with kinetic energy fluxes of both raindrop splashes and flow were used and this resulted in greater correlations in predicting sediment delivery rates.
Raindrop and flow interactions for interrill erosion with wind-driven rain
Erpul, GunayProfessor (author) / Gabriels, DonaldEmeritus Professor (author) / PhDNorton, L. DarrellResearch Soil Scientist (Retired) (author) / PhDFlanagan, Dennis C.Research Agricultural Engineer (author) / PhDHuang, Chi HuaResearch Soil Scientist (author) / PhDVisser, SaskiaResearcher (author)
Journal of Hydraulic Research ; 51 ; 548-557
2013-10-01
10 pages
Article (Journal)
Electronic Resource
English
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