Výsledky vyhľadávania - "Journal of hydraulic research"

Reservoir sedimentation Autor Schleiss, Anton J., Franca, Mário J., Juez, Carmelo, De Cesare, Giovanni

“…Artificial water storage, originated by the construction of dams, is essential for the sustainable health and welfare of civilizations since it supplies water…”
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Smoothed particle hydrodynamics (SPH) for free-surface flows: past, present and future Autor Violeau, Damien, Rogers, Benedict D.

“…This paper assesses some recent trends in the novel numerical meshless method smoothed particle hydrodynamics, with particular focus on its potential use in…”
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Self-aeration development and fully cross-sectional air diffusion in high-speed open channel flows Autor Wei, Wangru, Xu, Weilin, Deng, Jun, Guo, Yakun

“…Self-aeration in open channel flows occurs owing to free surface air entrainment. Self-aeration development and fully cross-sectional distribution of air…”
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Bedload transport: a walk between randomness and determinism. Part 1. The state of the art Autor Ancey, Christophe

“…This paper outlines the various approaches used to calculate bedload transport. As bedload transport exhibits considerable spatial and temporal variations,…”
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Hydrodynamics of vegetated channels Autor Nepf, Heidi M.

“…This paper highlights some recent trends in vegetation hydrodynamics, focusing on conditions within channels and spanning spatial scales from individual…”
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Dynamic impact of a water and sediments surge against a rigid wall Autor Armanini, Aronne, Rossi, Giulia, Larcher, Michele

“…The paper addresses the dynamic impact of channel flows of water and mixtures of water and sediments on a test wall. Two types of impact may occur: the first…”
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Bedload transport: a walk between randomness and determinism. Part 2. Challenges and prospects Autor Ancey, Christophe

“…By the late nineteenth century, the scientific study of bedload transport had emerged as an offshoot of hydraulics and geomorphology. Since then, computing…”
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Scale effects in physical hydraulic engineering models Autor Heller, Valentin

“…Scale effects arise due to force ratios which are not identical between a model and its real-world prototype and result in deviations between the up-scaled…”
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Water flow and sediment transport at open-channel confluences: an experimental study Autor Yuan, Saiyu, Tang, Hongwu, Xiao, Yang, Qiu, Xuehan, Xia, Yang

“…The knowledge of the dynamics of urban channel confluences is insufficient as most past studies have focused on natural river confluences. This paper reports…”
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A review of physical experiments for leak detection in water pipes through transient tests for addressing future research Autor Brunone, Bruno, Maietta, Filomena, Capponi, Caterina, Keramat, Alireza, Meniconi, Silvia

“…Since the 1990s, pressure waves propagating in pressurized pipes during a transient event have been re-evaluated both in the laboratory and in real systems as…”
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Modelling marine turbine arrays in tidal flows Autor Stansby, Peter K., Ouro, Pablo

“…Tidal stream turbines operate in the harsh marine environment, subjected to turbulence, wave action and wakes from upstream devices when deployed in arrays…”
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Entrainment and mixing in unsteady gravity currents Autor Ottolenghi, Luisa, Adduce, Claudia, Inghilesi, Roberto, Armenio, Vincenzo, Roman, Federico

“…Entrainment and mixing in lock-exchange gravity currents are investigated by large eddy simulations. Nine cases are analysed, varying the initial excess…”
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Mechanism of low frequency high amplitude pressure fluctuation in a pump-turbine during the load rejection process Autor Fu, Xiaolong, Zuo, Zhigang, Chang, Hong, Li, Deyou, Wang, Hongjie, Wei, Xianzhu

“…Owing to the complexity of the load rejection process, the accompanied complex low frequency pressure fluctuations and their sources have not been determined…”
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A multi-phase particle shifting algorithm for SPH simulations of violent hydrodynamics with a large number of particles Autor Mokos, Athanasios, Rogers, Benedict D., Stansby, Peter K.

“…A numerical inconsistency has emerged for multi-phase smoothed particle hydrodynamics simulations when using very high resolution, made possible by graphical…”
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Estimating drag coefficient for arrays of rigid cylinders representing emergent vegetation Autor Sonnenwald, Fred, Stovin, Virginia, Guymer, Ian

“…Flow resistance due to vegetation is of interest for a wide variety of hydraulic engineering applications. This note evaluates several practical engineering…”
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Air-water flows Autor Valero, Daniel, Felder, Stefan, Kramer, Matthias, Wang, Hang, Carrillo, José M., Pfister, Michael, Bung, Daniel B.

“…High Froude-number open-channel flows can entrain significant volumes of air, a phenomenon that occurs continuously in spillways, in free-falling jets and in…”
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New insight in Francis turbine cavitation vortex rope: role of the runner outlet flow swirl number Autor Favrel, Arthur, Gomes Pereira Junior, Joao, Landry, Christian, Müller, Andres, Nicolet, Christophe, Avellan, François

“…At part load operation, Francis turbines experience the development of a cavitation vortex rope in the draft tube, whose precession acts as a pressure…”
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Flow resistance of emergent rigid and flexible floodplain vegetation Autor Aberle, Jochen, Järvelä, Juha

“…This paper summarizes current practices for the estimation of flow resistance caused by floodplain vegetation in emergent flow conditions. The current…”
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Experimental analysis for self-cleansing open channel design Autor Safari, Mir Jafar Sadegh, Aksoy, Hafzullah

“…Self-cleansing is a hydraulic design concept for drainage systems for mitigation of sediment deposition. Experimental studies in the literature have mostly…”
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Effects of tributary floodplain on confluence hydrodynamics Autor Yuan, Saiyu, Yan, Guanghui, Tang, Hongwu, Xiao, Yang, Rahimi, Hamidreza, Aye, Moe Nandar, Gualtieri, Carlo

“…Confluences are common components of river networks and are characterized by a highly complex flow structure. Two confluence geometries, without and with the…”
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