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Inundation Analysis of Suyoung.Mangmi Lowland Area Using SWMM and FLUMEN  

Kang, Tae-Uk (부경대학교 대학원 토목공학과)
Lee, Sang-Ho (부경대학교 건설공학부)
Jung, Tae-Hun (부경대학교 대학원 토목공학과)
Oh, Jai-Ho (부경대학교 환경대기과학과)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.10, no.5, 2010 , pp. 149-158 More about this Journal
Abstract
Recent rainfall patterns in Korea show that both of the total amount of rainfall and the total number of heavy rain days have been increased. Therefore, the damage resulted from flood disaster has been dramatically increased in Korea. The purpose of the present study is to analyze flooding in an urban area using SWMM linked with FLUMEN. The study area is Suyeong-Mangmi lowland area, Busan, Korea. Suyeong-Mangmi lowland area have been a flooding hazard zone since 1995. The last flooding cases of this area occurred on July 7th and 16th, 2009, and the later flooding case was analyzed in this study. The first step of computation is calculating flow through storm sewers using the urban runoff simulation model of SWMM. The flooding hydrographs are used in the inundation analysis model of FLUMEN. The results of inundation analysis were compared with the real flooding situation of the study area. The real maximum inundation depth was guessed by 1.0 m or more on July 16th. The computation yields the maximum inundation depth of 1.2 m and the result was somewhat overestimated. The errors may be resulted from the runoff simulation and incapability of simulation using FLUMEN for flow into buildings. The models and procedures used in this study can be applied to analysis of flooding resulted from severe rainfall and insufficiency of drainage capacity.
Keywords
flooding analysis; inundation; SWMM; FLUMEN;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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