2024-03-29T12:45:50Z
https://kitami-it.repo.nii.ac.jp/oai
oai:kitami-it.repo.nii.ac.jp:00009114
2022-12-13T02:24:13Z
1:86
交互砂州形成における混合粒径砂の影響に関する実験と理論
FLUME EXPERIMENTS AND LINEAR STABILITY ANALYSIS OF THE INFLUENCE OF NON-UNIFORM SEDIMENTS ON THE ALTERNATE BAR FORMATION
渡邊, 康玄
ワタナベ, ヤスハル
WATANABE, Yasuharu
矢野, 雅昭
YANO, Masaaki
山口, 里実
YAMAGUCHI, Satomi
平井 康幸
HIRAI, Yasuyuki
alternate bar
non-uniform sediment
flume experiment
stability analysis
To elucidate alternate bar profiles and bar formation under the non-uniform sediments condition, flume experiments and linear stability analyses were conducted. The experiments results show that alternate bars profiles were disturbed in the case that discharge was reduced by 30% from the case that alternate bar were formed. Those bar profiles disturbance assumed to be caused by forming fix bars covered by coarse sediments. The experiments results also show that bar formation was not formed in some cases. Linear stability analyses results show that prominent instability at 1m bar wave length, that is one third of proper alternate bar wave length, was conformed in one of the case that alternate bar was not formed. Thereby, it was assumed that the peculiar instability restrained bar formation.
journal article
土木学会
2016
application/pdf
土木学会論文集B1(水工学)
4
72
I_775
I_780
1880-8751
https://kitami-it.repo.nii.ac.jp/record/9114/files/dobokuB1,72(4),p.I_775-I_780-1.pdf
jpn
AN10426673
https://doi.org/10.2208/jscejhe.72.I_775
130005312139
open access