Show simple item record

contributor authorLi He
contributor authorJennifer G. Duan
contributor authorGuangqian Wang
contributor authorXudong Fu
date accessioned2017-05-08T21:51:30Z
date available2017-05-08T21:51:30Z
date copyrightNovember 2012
date issued2012
identifier other%28asce%29hy%2E1943-7900%2E0000627.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/64459
description abstractThe major obstacles to simulating flood flow in the Yellow River are its high sediment concentration, complex compound cross section, and rapid change in channel planform. This paper presents an improved one-dimensional numerical model that takes into account the effect of sediment concentration and bed change on mass and momentum conservation of flood flow in the Yellow River. The model is calibrated and then validated by simulating three individual flood events. Results show that an increase in sediment concentration leads to a reduction in flood wave celerity and peak discharge. The generalized likelihood uncertainty estimation (GLUE) method is used to evaluate the uncertainty of modeling results. A sensitivity index, analogous to the Nash–Sutcliffe efficiency factor, is adopted to quantify the sensitivity of calibration parameters. The modeling results are sensitive to the choice of Manning’s roughness coefficient and the empirical recovery coefficient for suspended sediment transport at reaches of transitional channel planform.
publisherAmerican Society of Civil Engineers
titleNumerical Simulation of Unsteady Hyperconcentrated Sediment-Laden Flow in the Yellow River
typeJournal Paper
journal volume138
journal issue11
journal titleJournal of Hydraulic Engineering
identifier doi10.1061/(ASCE)HY.1943-7900.0000599
treeJournal of Hydraulic Engineering:;2012:;Volume ( 138 ):;issue: 011
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record