Results 41 to 50 of about 14,188 (165)
Quantification of bed-load transport over dunes
E3S Web of Conferences, 2018 There is disagreement in the literature as to whether a shear stress-based approach can be used to accurately predict sediment transport over dunes. This study aims to address this disagreement.
Lockwood Kenneth +2 more
doaj +1 more source
A flume experiment on critical flow conditions with gravel dunes
Shui kexue jinzhan, 2013 Gravel dunes are the typical form of bed load motion and one of the research focuses in river dynamics,which determines the bed resistance,the bed geometry and the bed load transport rate in alluvial rivers.Most previous studies focused on the fine ...
FU Xuhui, YANG Shengfa
doaj +1 more source
Comparative study of the classical bed load transport rate formulae in mountainous rivers
工程科学与技术FENG Zhiyi +5 more
doaj +1 more source
Sediment fraction and its mechanic movement characteristics in Inner Mongolia reach of Yellow River
Shuili Shuiyun Gongcheng Xuebao, 2017 The combination of water and sediment prompts the riverbed evolution. The movement forms, movement rules and the effects on riverbed having different sediment grain sizes are various.
QIN Yi +4 more
doaj +1 more source
Experimental study on characteristics of bed load transport over low-head, run-of-river dams
Shui kexue jinzhan, 2020 During flood period, the bed load deposited behind a run-of-river dam on a mountain river could be carried over the dam crest by the flow which would intensify sediment transport.
Zili YAN, Yuan XU, Danxun LI
doaj +1 more source
Study on effects of incoming sediment change on river bed-form and bed load transport
工程科学与技术, 2016 :Abstract: In order to solve the problem of mountain river to river morphology with the changes of uncertainly sediment supply conditions, based on J. G. Venditti series of flume experiments in sediment supply, coinciding fully the characteristics of bed
wangqiang +3 more
doaj
Periodicals of Engineering and Natural Sciences (PEN), 2020 In this research, the impact of bedform on the bed - load transport rate was studied through experiments. The experiments were conducted on two cases, one when the bedform was flat, and the other when the bedform was standing wave. The arrival time is the time of bed - load reaches a reference surface at the end of the flume.
Ahmed Sami Nasser, Nezar Hassan Mohamed
openaire +1 more source
Estuaries Hidrofisis Characteristic
Jurnal Pembangunan dan Alam Lestari, 2017 Estuaries hidrofisis characteristic can be based on the moon changes phases as the earth's major satellite, distribution of physical variable position, flow rate, bed material transport, and weather condition in Indonesia (dry and wet season).
Maxi Tendean
doaj
Downward flow of proppant slurry through curving pipes during horizontal well fracturing
Oil & Gas Science and Technology, 2018 The transport of proppant-fracturing fluid mixture in a fracturing pipe can significantly affect the final proppant placement in a hydraulic fracture in horizontal well fracturing. To improve the understanding of the hydrodynamic performance of proppants
Zhang Guodong, Chao Kun
doaj +1 more source
Water Resources Research, 1989 Fractional transport rates, bed surface texture, and bed configuration were measured after a mixed size sediment had reached an equilibrium transport state for seven different flow strengths in a recirculating laboratory flume. Fractional transport rates were also measured at the beginning of each run when the bed was well mixed and planar.
Wilcock, Peter, Southard, J. B.
openaire +3 more sources