Open AccessOverbank Floods of Lower Yellow River Based on Two - dimensional Numerical Simulation and Analysis
Author(s) -
Lei Ma,
Chung-Hsiang Jiang,
Dongfeng Li,
Hongwu Zhang,
Zihao Li
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/768/1/012039
Subject(s) - overbank , flood myth , floodplain , levee , hydrology (agriculture) , estuary , channel (broadcasting) , environmental science , river bed , flow (mathematics) , river regime , geology , geography , geomorphology , geotechnical engineering , engineering , cartography , oceanography , telecommunications , mathematics , fluvial , geometry , archaeology , structural basin
When the flow of the Yellow River is large, a large range of floodplains will be formed around the main channel, and the crisis will greatly improve safety. Analysis of the changes of flood peak shape, flood peak propagation speed and flood level at large flow rate plays an important role in the protection and flood prevention of the Yellow River levee. Based on the established two-dimensional mathematical model of Luokou to the Yellow River estuary, the data of peak flow, velocity and water level are obtained by simulation calculation. By drawing the flood peak evolution process map from Luokou to Yellow River estuary, the change of flood peak type and flood peak propagation speed are analyzed to provide technical support for flood defense.