Search results for "Self-similarity"

showing 2 items of 72 documents

New Stage–Discharge Relationship for Triangular Broad-Crested Weirs

2022

Simple hydraulic structures, such as weirs, allow measuring flow discharge by using the upstream flow depth and a stage–discharge relationship. In this relationship, a discharge coefficient is introduced to correct all the effects neglected in the derivation (viscosity, surface tension, velocity head in the approach channel, flow turbulence, non-uniform velocity profile, and streamline curvature due to weir contraction). In this paper, the dimensional analysis and the incomplete self-similarity theory are used to investigate the outflow process of triangular broad-crested weirs, characterized by different values of the ratio between crest height p and channel width B, and to theoretic…

self-similaritytriangular broad-crested weirdimensional analysiGeography Planning and Developmentopen channel flowAquatic Sciencestage-discharge equationtriangular broad-crested weir; open channel flow; stage–discharge equation; dimensional analysis; self-similarityBiochemistryWater Science and TechnologyWater
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Comment on "Measuring the flow resistance of submerged grass"

2004

In this short note, the experimental data of Wilson and Horritt (2002.Hydrological Processes16: 2589–2598), jointlywith the measurements by Kouwenet al. (1969.Journal of Irrigation and Drainage Division, ASCE95: 329–342)and by Raffaelliet al. (2002 InProceedings XXVIII Convegno di Idraulica e Costruzioni Idrauliche, Cosenza, Italy;223–230), arefirstly used to test Kouwen’s approach. All experimental data are then used to calibrate aflow resistanceequation that was theoretically deduced by dimensional analysis and self-similarity theory

self-similarityvegetated channeldimensional analysiSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliKouwen’s methodflow resistance
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