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http://dx.doi.org/10.3741/JKWRA.2017.50.4.263

Simulation and analysis of urban inundation using the integrated 1D-2D urban flood model  

Lee, Seungsoo (Department of Climate Application, APEC Climate Center)
Noh, Seong Jin (Department of Civil Engineering, University of Texas at Arlington)
Jang, Cheolhee (Hydro Science and Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Rhee, Dong Sop (Hydro Science and Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of Korea Water Resources Association / v.50, no.4, 2017 , pp. 263-275 More about this Journal
Abstract
Integrated numerical approaches with physically-based conceptualization are required for accurate urban inundation simulation. In this study, we described, applied and analyzed an integrated 1-dimensional (1D) sewerage system and 2-dimensional (2D) surface flow model, which was suggested by Lee et al. (2015). This model was developed based on dual-drainage concept, and uses storm drains as an discharge exchange spot rather than manholes so that interaction phenomena between surface flow and sewer pipe flow are physically reproduced. In addition, the building block concept which prevents inflows from outside structures is applied in order to consider building effects. The capability of the model is demonstrated via reproducing the past flooding event at the Sadang-cheon River catchment, Seoul, South Korea. The results show the plausible causes of the inundation could be analysed in detail by integrated 1D-2D modeling.
Keywords
Integrated 1D-2D model; Urban inundation; Dual-drainage; Sadang-cheon;
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Times Cited By KSCI : 3  (Citation Analysis)
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