Catastrophic failure of dam structures has often led to severe consequences. The colossal wave receding at a higher velocity from the sudden failure of the dams may obliterate the downstream areas causing loss of lives and property damage. Thus, proper mitigation measures and contingency plans must be formulated beforehand to minimize the impact of such disasters. Consequently, there has been a strong tendency to study dam breach flood modeling using different approaches for both hypothetical dam breach scenarios and real incidents. The technology used for dam breach studies is advancing and a comprehensive review of the existing methodologies would help the modelers in their model development. This paper reviews the state-of-the-art methodologies utilized in studies to propagate the dam break flood wave. Furthermore this guides the selection of methods best suited considering the project-specific requirements and the complexity of project to simulate the risk to the vulnerable areas generated from the dam break flood flow. Different terrain datasets, mesh generation techniques and calibration techniques have been adapted and adhered to improve computational accuracy, stability and efficiency in modeling dam break floods. The use of high-resolution global and site-specific datasets, subgrid models, the choice of roughness coefficients and high-resolution time steps have to be investigated thoroughly in these models. The paper reviews the existing methodologies with the strengths and limitations facilitating the future dam breach modelers to select the suitable approach in dam break flood wave modeling.

中文翻译：

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溃坝洪水波传播模型开发技术综述

大坝结构的灾难性破坏常常导致严重的后果。大坝突然溃决后，巨浪以更快的速度退去，可能会淹没下游地区，造成人员伤亡和财产损失。因此，必须提前制定适当的减灾措施和应急预案，以最大程度地减少此类灾害的影响。因此，人们强烈倾向于针对假设的溃坝场景和实际事件使用不同的方法来研究溃坝洪水建模。用于溃坝研究的技术正在不断进步，对现有方法的全面审查将有助于建模者的模型开发。本文回顾了溃坝洪水波传播研究中使用的最先进方法。此外，这还指导选择最适合的方法，考虑项目的具体要求和项目的复杂性，以模拟溃坝洪水对脆弱地区产生的风险。不同的地形数据集、网格生成技术和校准技术已经过调整和遵守，以提高溃坝洪水建模的计算精度、稳定性和效率。必须在这些模型中彻底研究高分辨率全局和特定地点数据集、子网格模型、粗糙度系数和高分辨率时间步长的选择。本文回顾了现有方法的优点和局限性，以帮助未来的溃坝建模者选择合适的溃坝洪水波建模方法。