用于海啸波数值模拟的VOLNA代码：生成、传播和淹没
The VOLNA code for the numerical modelling of tsunami waves: generation, propagation and inundation
AI总结：
提出一种基于非结构三角网格的有限体积法VOLNA代码，能够模拟海啸的生成、传播和沿岸爬升，并通过解析解和实验数据验证其准确性。
摘要：
提出了一种新颖的海啸波建模工具。该工具具有用于业务化目的的潜力：实际上，数值代码\VOLNA能够处理海啸的完整生命周期（生成、传播和沿岸爬升）。该算法在非结构三角网格上工作，因此可以在任意复杂域中运行。本文详细描述了代码中实现的有限体积方案。解释了湿/干边界的数值处理。这一点对于精确的爬升/回落计算至关重要。大多数现有的海啸代码在此阶段使用半经验技术，这些技术对于海啸灾害缓解并不总是足够的。实际上，疏散居民的决定是基于使用此类数值工具生成的淹没图。我们提出了几个部分验证我们算法的现实测试案例。进行了与解析解和实验数据的比较。最后，概述了主要结论并提出了未来研究的展望。
英文摘要：
A novel tool for tsunami wave modelling is presented. This tool has the potential of being used for operational purposes: indeed, the numerical code \VOLNA is able to handle the complete life-cycle of a tsunami (generation, propagation and run-up along the coast). The algorithm works on unstructured triangular meshes and thus can be run in arbitrary complex domains. This paper contains the detailed description of the finite volume scheme implemented in the code. The numerical treatment of the wet/dry transition is explained. This point is crucial for accurate run-up/run-down computations. Most existing tsunami codes use semi-empirical techniques at this stage, which are not always sufficient for tsunami hazard mitigation. Indeed the decision to evacuate inhabitants is based on inundation maps which are produced with this type of numerical tools. We present several realistic test cases that partially validate our algorithm. Comparisons with analytical solutions and experimental data are performed. Finally the main conclusions are outlined and the perspectives for future research presented.
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