Inundation analysis of the effectiveness of an estuarygate in Hori River |
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Affiliation: | 1. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 Zhongshan Rd. N., Shanghai 200062, PR China;2. Shanghai Water Engineering Design and Research Institute Co., Ltd., 58 Huachi Rd., Shanghai 200061, PR China;1. Aerospace Engineering, Indian Institute of Technology, Kharagpur, India;2. Institute of Aerodynamics and Fluid Mechanics, TU Munich, Germany |
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Abstract: | Storm surges and floods around bays in Japan frequently result in water disasters. Both dikes and estuary gates can be constructed in urban areas near bays as counter measures. Estuary gates at the mouth of a river are intended to protect the upstream areas from storm surges and tsunamis. The sewer systems in urban areas also decrease the inundation. In this study, a numerical simulation is carried out to examine the effectiveness of the estuary gate and performance of the sewer system. A synthetic analysis model of inundation phenomena is developed and applied to the behavior of water in the urban area near the Nagoya Port and the estuary region of the Hori River. The developed model consists of models for the sea, river, sewer, overland flood flow, and typhoon. The inundation analysis model is validated by a comparison of analytical and observed results. The features of the inundations in the urban area caused by various conditions are discussed. |
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