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http://dx.doi.org/10.3741/JKWRA.2015.48.1.45

A Two-dimensional Hydraulic Analysis Considering the Influence of River Inflow and Harbor Gate in the Bay  

Lee, Jae Joon (School of Civil and Environmental Engineering, Kumoh National Institute of Technology)
Lee, Hoo Sang (Department of Civil Engineering, Graduate school, Kumoh National Institute of Technology)
Shim, Jae Sol (Korea Institute of Ocean Science & Technology)
Yoon, Jong Ju (Korea Institute of Ocean Science & Technology)
Publication Information
Journal of Korea Water Resources Association / v.48, no.1, 2015 , pp. 45-55 More about this Journal
Abstract
In this study, when seawall or harbor gate is installed for coastal disaster prevention, a two-dimensional water analysis in the bay is carried out to consider the flood amount of river inflow and effect of harbor gate. The Yeongsan river and the port Mokpo area are selcected for the study region. Then, by analyzing the hydraulic characteristics of flood flow of the Yeongsan river, we analysed the compatibility of the results in the two-dimensional hydrodynamic model. A tw-odimensional water analysis were conducted for the four cases considering whether a harbor gate is installed or not, and whether the inland water boundary condition is considered or not, also with open sea boundary condition. The results of the two-dimensional water analysis shows that water level change near the port Mokpo area is mainly caused by the discharge of the estuary barrage of the Yeongsan river because the harbor gate was installed. In addition, it is revealed that the volume of reservoir created by the harbor gate and the estuary barrage is too much small compared to the volume of the discharge from the Yeongsan river. Therefore, when the harbor gate is installed in the open sea, we concluded that a flexible management between the harbor gate and the estuary barrage of the Yeongsan river is required. A initial water level of the bay and outflow from the harbor gate are proposed for disaster prevention in the coastal area of port Mokpo.
Keywords
storm surge; river inflow; coastal disaster prevention; harbor gate; 1,2-D hydraulic analysis;
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Times Cited By KSCI : 1  (Citation Analysis)
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