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http://dx.doi.org/10.9765/KSCOE.2014.26.5.292

Development of Storm Sewer Numerical Model for Simulation of Coastal Urban Inundation due to Storm Surge and Rainfall  

Yoon, Sung Bum (Dept. of Civil, Env. and Plant Engrg, ERICA Campus, Hanyang University)
Lee, Jaehwang (Dept. of Civil & Env. Engrg, Graduate School, Hanyang University)
Kim, Gun Hyeong (Dept. of Civil & Env. Engrg, Graduate School, Hanyang University)
Song, Ji Hoon (Dept. of Civil & Env. Engrg, Graduate School, Hanyang University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.26, no.5, 2014 , pp. 292-299 More about this Journal
Abstract
Since most of the researches on the coastal inundation due to typhoons have considered only storm surges, an additional inundation due to rainfall has been neglected. In general, typhoons are natural disasters being accompanied by the rainfall. Thus, it is essential to consider the effect of rainfall in the numerical simulation of coastal inundation due to storm surges. Because the rainwater is discharged to the sea through the storm sewer system, it should be included in the numerical simulation of storm surges to obtain reasonable results. In this study an algorithm that can deal with the effects of rainfall and sewer system is developed and combined with a conventional storm surge numerical model. To test the present numerical model various numerical simulations are conducted using the simplified topography for the cases including the inundation due to rainfall, the drainage of rainwater, the backflow of sea water, and the increase of sea water level due to drainage of rainwater. As a result, it is confirmed that the basic performance of the present model is satisfactory for various flow situations.
Keywords
storm surge; rainfall; storm sewer numerical model; drainage; back flow;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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