Search results for " Flow resistance"

showing 2 items of 12 documents

Studio sperimentale sulle resistenze al moto di correnti nei rill

Settore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliStructure from motion Flow resistance rill erosion
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Comment on “Effects of different tillage practices on the hydraulic resistance of concentrated flow on the loess plateau in China” by J. Sun et al

2020

Abstract For concentrated flows, which are characterized by small water depth and steep sloping beds, hydraulic conditions different from those typical of streams and rivers occur. In this study a new theoretically deduced flow resistance equation was tested using the experimental data by Sun et al. for three different tilled surfaces (Manual Dibbling, MD, Manual Hoeing, MH, and Contour Drilling, CD). At first, the profile parameter-relationship, which is the relationship between the velocity profile parameter Γ, the channel slope and the flow Froude number, was calibrated using rill flow data by Di Stefano et al. Then, the applicability of this relationship was tested by the measurements o…

geographygeography.geographical_feature_category010504 meteorology & atmospheric sciencesFlow (psychology)Soil science04 agricultural and veterinary sciencesSurface finish01 natural sciencesTillageRillsymbols.namesakeFlow velocity040103 agronomy & agricultureFroude numbersymbolsCalibrationSurface roughness0401 agriculture forestry and fisheriesSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliDimensional analysis Flow resistance Self-similarity Soil erosion Velocity profileGeology0105 earth and related environmental sciencesEarth-Surface Processes
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