Search results for "Concave profile"

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Evaluating the Effects of the Rill Longitudinal Profile on Flow Resistance Law

2022

In this paper, for the first time, the effect of the longitudinal profile shape of the rill (uniform, concave, and convex) on flow resistance law was studied. The first part of the paper is based on a theoretical equation to estimate the Darcy–Weisbach friction factor f, deduced from the power velocity distribution and rill measurements performed on a plot. At first, the equation to estimate the Γ parameter of the velocity profile was calibrated using all available measurements. Then an analysis of the hydraulic characteristics at reach scale, for comparable values of discharge, was carried out, comparing the different profile shapes. To assess the influence of the rill profile …

Rill erosionSlope profileWater supply for domestic and industrial purposesRill hydraulicGeography Planning and DevelopmentHydraulic engineeringAquatic ScienceBiochemistryPhysics::GeophysicsConcave profileConvex profileSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-Forestalislope profile; concave profile; convex profile; rill erosion; rill hydraulicsTC1-978TD201-500Water Science and Technologyrill hydraulicsWater; Volume 14; Issue 3; Pages: 326

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