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contributor authorMiao Yang
contributor authorJiaguo Gong
contributor authorYong Zhao
contributor authorHao Wang
contributor authorXiaohui He
contributor authorCuiping Zhao
date accessioned2022-01-30T19:42:48Z
date available2022-01-30T19:42:48Z
date issued2020
identifier other%28ASCE%29HE.1943-5584.0001899.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4265840
description abstractWe used a fixed-bed flume test and ultrasonic sensor measurement technology to study the evolution of the characteristics of thin-layer flow roll waves on a sloped surface. The results indicated that there was a positive correlation between the velocity of the roll wave and the Reynolds number when the energy slope and roughness were small. In addition, the amplitude of the increase gradually decreased with increases in roughness, and the height of the roll waves showed a single-hump trend of change. When the roughness was relatively small, the frequency of the roll waves increased as the Reynolds number increased, and the ratio of the wavelength to the water depth gradually decreased. As the energy slope increased, both the wave velocity and frequency of the roll waves gradually increased; they peaked when the energy slope was 0.3420. We found that the dominant factors that affected different roll-wave characteristic parameters varied. The roughness of the bed had a relatively prominent impact on the velocity of the roll waves, but the energy slope had a greater effect on the height of the roll waves.
publisherASCE
titleEvolution Rules of Rolling Waves on Slopes Based on Artificial Flat Slopes of Loess
typeJournal Paper
journal volume25
journal issue5
journal titleJournal of Hydrologic Engineering
identifier doi10.1061/(ASCE)HE.1943-5584.0001899
page04020014
treeJournal of Hydrologic Engineering:;2020:;Volume ( 025 ):;issue: 005
contenttypeFulltext


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