Abstract
The occurrence of storm surge disaster is often accompanied with floodplain, overflow, dike breach and other complex phenomena, while current studies on storm surge flooding are more concentrated on the 1D/2D numerical simulation of single disaster scenario (floodplain, overflow or dike breach), ignoring the composite effects of various phenomena. Therefore, considering the uncertainty in the disaster process of storm surge, scenario analysis was firstly proposed to identify the composite disaster scenario including multiple phenomena by analyzing key driving forces, building scenario matrix and deducing situation logic. Secondly, by combining the advantages of k-ω and k-ε models in the wall treatment, a shear stress transmission k-ω model coupled with VOF was proposed to simulate the 3D flood routing for storm surge disaster. Thirdly, risk degree was introduced to make the risk analysis of storm surge disaster. Finally, based on the scenario analysis, four scenarios with different storm surge intensity (100-year and 200-year frequency) were identified in Tianjin Binhai New Area. Then, 3D numerical simulation and risk map were made for the case.
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Supported by the National Basic Research Program of China (“973” Program, No. 2013CB035906), Natural Science Foundation of Tianjin (No. JCYBJC19500) and the Foundation of Innovative Research Groups of National Natural Science Foundation of China (No. 51321065).
Wang Xiaoling, born in 1968, female, Dr, Prof.
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Wang, X., Sun, X., Zhang, S. et al. 3D simulation of storm surge disaster based on scenario analysis. Trans. Tianjin Univ. 22, 110–120 (2016). https://doi.org/10.1007/s12209-016-2528-y
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DOI: https://doi.org/10.1007/s12209-016-2528-y