| Title |
Numerical Simulation and Laboratory Experiment of Flooding on a Perpendicular Floodplain with Dam-Break Flows |
| Authors |
황승용(Hwang, Seung-Yong) ; 김형석(Kim, Hyung Suk) |
| DOI |
https://doi.org/10.12652/Ksce.2021.41.3.0219 |
| Keywords |
수치 모의; 댐 붕괴 실험; 불연속 지형; 홍수터; 잠김과 드러남 Numerical simulation; Dam-break experiment; Discontinuous topography; Floodplain; Wetting and drying |
| Abstract |
Numerical simulation with Hwang’s scheme, which can analyze shallow-water flow over discontinuous topography, was compared with a laboratory experiment of flooding on a perpendicular floodplain with dam-break flows. The simulation results were in good agreement with the results measured in an experimental flume with a reservoir, channel, and floodplain. The wetting and drying process on a perpendicular floodplain with a dam-break flow was particularly well simulated. The difference in simulation results according to the type of flow resistance was insignificant. The results of this study are expected to improve the accuracy of predicting inundation in urban rivers. |