Development of a Tsunami Simulator Integrating the Smoothed-Particle Hydrodynamics Method and the Nonlinear Shallow Water Wave Model
Development of a Tsunami Simulator Integrating the Smoothed-Particle Hydrodynamics Method and the Nonlinear Shallow Water Wave Model
复制标题
集成平滑粒子流体动力学方法和非线性浅水波模型的海啸模拟器的开发
DOI：
10.2208/kaigan.70.i_16
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
D. Sugawara
中科院分区：
文献类型：
--
作者：
T. Suwa;F. Imamura;D. Sugawara
我们开发了一个海啸模拟器集成的3-D流体模拟技术，运行在大规模并行计算机上使用光滑粒子流体动力学（SPH）方法，连同2-D海啸传播模拟技术，使用非线性浅水波模型。本文用二维数值模拟方法计算了从震中到海岸约1000 km的海啸传播。三维SPH方法可用于计算海啸对建筑物的作用力，并可用于模拟最大千米尺度的城市地区的洪水模式。通过将计算机的处理能力应用于这项研究所产生的技术，我们力求通过更好地了解海啸的机制，为改进备灾和减灾作出贡献。
We develop a tsunami simulator integrating a 3-D fluid simulation technology that runs on large-scale parallel computers using smoothed-particle hydrodynamics (SPH) method, together with a 2-D tsunami propagation simulation technique using a nonlinear shallow water wave model. We use the 2-D simulation to calculate tsunami propagation of scale of about 1000km from epicenter to near shore. The 3-D SPH method can be used to calculate the force that a tsunami can exert on a building, and to simulate flooding patterns in urban area of at most km scale. By applying the processing power of computers to the technologies resulting from this research, we seek to contribute to improved disaster preparedness and disaster mitigation through a better understanding of tsunami's mechanisms.