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Morphological properties of two-dimensional and three-dimensior bedforms in open channel flow: A flume experiments study: 《International Journal of Sediment Research》2025年第1期15-30,共16页Wenhong Cao Xu Geng Chunjing Liu Lingfeng Zhang; The current research has been supported by the National Natural Science Foundation of China(Grant Nos.12072373,51679260);the China Institute of Water Resources and Hydropower Research(IWHR)R&D Support Programs(Grant No.SE0145B022021).; Bedforms are formed by sediment particles under the action of flow,which in turn affect flow and sediment movement.However,the fundamental mechanisms behind the formation and development of bedforms under varying flow...; 关键词：BEDFORMS DUNES BEDLOAD Flow structure Sediment transport

Detailed bed topography and sediment load measurements for two stepdown flows in a laboratory flume: 《International Journal of Sediment Research》2022年第3期287-298,共12页Daniel Wren Roger Kuhnle Tate McAlpin David Abraham Keaton Jones; funded by the U.S.Army Corps of Engineers’Regional Sediment Management Program;the remaining funds were supplied by the United States Department of Agriculture.; Streams and rivers,particularly smaller ones,often do not maintain steady flow rates for long enough to reach equilibrium conditions for sediment transport and bed topography.In particular,streams in small watersheds ...; 关键词：Sediment transport BEDFORMS DUNES WAVELETS

Characterizing and identifying bedforms in the wandering reach of the lower Yellow River被引量：6: 《International Journal of Sediment Research》2022年第1期110-121,共12页Yuanfeng Zhang Ping Wang Guanqing Shen; supported by the National Research and Development Program of China(Grant No.2017YFC0405505);Basic Research Fund for Central Public Interest Scientific Institutes(Grant No.HKY-JBYW-2017-07);the National Natural Science Foundation of China(Grant No.51379087).; The lower Yellow River(LYR)is a fully alluvial system with a fine-grained bed that has a high proportion of silt.Bathymetric survey data collected with a Multi-Beam Echo Sounder(MBES)from the wandering reach of the LY...; 关键词：Bedform discrimination Two-scales of dunes Alluvial resistance The lower Yellow River

Glacial bedforms in the Northwind Abyssal Plain,Chukchi Borderland被引量：1: 《Acta Oceanologica Sinica》2021年第5期114-119,共6页Zhongyan Shen Tao Zhang Jinyao Gao Chunguo Yang Qingsheng Guan; The National Natural Science Foundation of China under contract No.41976079;the Chinese Polar Environment Comprehensive Investigation and Assessment Programmes under contract No.CHINARE-03-03。; A series of sub-parallel linear glacial scours are identified on the crest of the Baoshi Seamount in the Northwind Abyssal Plain by compiling new multibeam data acquired during the 9 th Chinese Arctic Research Expedit...; 关键词：Chukchi Borderland Northwind Abyssal Plain glacial bedforms mega-scale glacial lineations ice shelf

Influence of surface roughness of dune bedforms on flow and turbulence characteristics被引量：2: 《International Journal of Sediment Research》2020年第6期666-678,共13页Veysel Sadan Ozgur Kirca Seyed Mahdi Saghebian Kiyoumars Roushangar Oral Yagci; The current paper investigates the flow and turbulence characteristics over dune bedforms by means of laboratory experiments,where spatially dense and temporally high frequency velocity measurements were done.Although...; 关键词：BEDFORMS DUNES Friction drag Turbulence Grain roughness Form drag

Impacts of vegetation over bedforms on flow characteristics in gravel-bed rivers: 《Journal of Hydrodynamics》2019年第5期986-998,共13页Hossein Afzalimehr Mohammad Reza Maddahi Jueyi Sui Majid Rahimpour; In the present study,among six gravel-bed river reaches,two natural gravel-bed river reaches with approximately similar bedforms and flow conditions have been found,one river reach with vegetation on bedforms and the ...; 关键词：BEDFORM REYNOLDS SHEAR stress distribution TURBULENCE intensity VEGETATION velocity profiles

Predicting characteristics of dune bedforms using PSO-LSSVM被引量：6: 《International Journal of Sediment Research》2017年第4期515-526,共12页Kiyoumars Roushangar Seyed Mahdi Saghebian Dominique Mouaze; Dunes have a large influence on hydraulic roughness, and, thereby, on water levels which could affect the navigability of rivers and performance of hydraulic structures. The present study investigated the variation of...; 关键词：Alluvial channel Hydraulic characteristics DUNE Roughness coefficient Least Squares Support Vector machine Particle Swarm Optimization

Hydraulic Characteristics and Suspended Sediment Loads during Spring Breakup in Several Streams Located on the National Petroleum Reserve in Alaska, USA: 《Natural Resources》2013年第2期220-228,共9页Horacio Toniolo Dragos Vas Peter Prokein Richard Kenmitz Erica Lamb Dave Brailey; This article presents results from a broad field campaign involving discharge and surface-water slope measurements, water sampling, and longitudinal river-bed profile surveys. During the spring breakup of 2011, fieldw...; 关键词：Suspended Sediment Concentration BEDFORMS Resistance Coefficient Spring BREAKUP ARCTIC HYDROLOGY

Effects of silt loading on turbulence and sand transport被引量：1: 《International Journal of Sediment Research》2012年第4期451-459,共9页Daniel G.WREN Roger A.KUHNLE; supported by base funding from the USDA-Agricultural Research Service; The transport of bed material and fluid turbulence are affected by many factors, including the fine sediment load being carried in a channel. Current research has focused on sand-sized particles introduced to gravel b...; 关键词：Turbulence modulation BEDFORMS DUNES Sand transport Silt loading

INFLUENCE OF PIPE ANGLE ON BEDLOAD TRANSPORT IN AN INCLINED PIPE: 《International Journal of Sediment Research》2003年第2期122-129,共8页David M. ADMIRAAL; A number of reservoirs in Nebraska have been retrofitted with sediment bypass systems to extend their lifespan. The bypass systems are best suited for rerouting sediment that travels as bedload since bedload is relat...; 关键词：Sediment transport Sediment bypass BEDFORMS

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