Coastal Effects of Tsunamis (Seismic Sea Waves)

这项研究是对海啸（地震海浪）到达海岸线时的基本动力学以及随后的上升和下降过程的实验调查。它是研究启动奖CES-8503436的延续。其目标是更好地了解沿海地区破坏性海啸影响的机制。在启动奖下开发的独特的激光流动可视化实验室设备用于产生和研究近岸地区形成的钻孔海啸。对粘性和表面张力效应的观察提供了与物理模型相关的尺度效应的见解。通过直接力测量和激光诱导流动可视化技术，研究了与海啸从钻孔到上升模式转变相关的冲力。将这些观测结果与现有的实地观测结果相结合，实验研究的重点是指导理论工作，以更现实地模拟沿海地区破坏性海啸作用的力学。

This research is an experimental investigation of the fundamental dynamics of tsunamis (seismic sea waves) as they reach a shoreline, as well as the ensuing run-up and drawdown processes. It is a continuation of the research initiation award CES-8503436. The goal is to develop a better understanding of the mechanisms of destructive tsunami effects in a coastal zone. A unique laser-flow-visualization laboratory facility developed under the initiation award is used for generating and studying tsunamis formed as bores in the nearshore region. Observations of viscous and surface-tension effects provide insight into scale effects associated with physical models. Impulse forces associated with the tsunami transition from a bore to the run-up mode are being investigated through direct force measurements, together with the laser-induced flow-visualization technique. Combining these observations with available field observations, the emphasis of the experimental research is to guide theoretical efforts toward a more realistic modeling of the mechanics of destructive tsunami action in coastal areas.