Collaborative Research Utilizing NEES Facilities: Landslide Generated Tsunamis and Runup

利用 NEES 设施进行合作研究：山体滑坡引发的海啸和上升

• 批准号: 0324394
• 负责人: Philip Liu
• 金额: $ 31.9万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-02-15 至 2008-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0324394&HistoricalAwards=false
• 关键词: Collaborative; Research; Utilizing; NEES; Facilities

This research project seeks a better understanding of tsunamis, and the associated runup, of tsunamis generated by near shore landslides, including sub-aerial and submerged landslides. The project involves an integrated experimental and theoretical (numerical) component to develop simulation models based on the two-phase Reynolds Averaged Navier-Stokes (RANS) equations and the discrete element model (DEM). Besides the measurements of free surface elevations and runup heights, optical techniques, such as Particle Imaging Velocimetry (PIV), will be used to measure both fluid velocities and materials slide velocities in detail. The large-scale experiments will be performed at the Oregon State University NEES (Network for Earthquake Engineering Simulation) wave basin.The objectives are: (1) to characterize waves generated by three-dimensional solid body slides, and during the inception, deformation, and propagation of granular (material) landslides; (2) to parameterize the run-up and shoreward inundation associated with tsunamis generated by granular and solid body landslides; (3) to improve the capability of numerical models of the complex dynamic interactions among tsunami, shoreline, and moving granular and solid body slides; and (4) to establish benchmark problems for the study of waves generated by granular and solid body slides with high quality experimental data for validating numerical simulation models.The research operates at the interface between several traditional fields of science and engineering: fluid dynamics, solid mechanics, soil mechanics and applied mathematics. It integrates analytical and experimental approaches with measurements from experiments, leading to the rational development of new and improved numerical models. In addition, the results of this study will be incorporated into the revision of a CD-ROM; Tsunami: Understanding the Giant Wave, which has been distributed to many high schools, science museums, libraries, and research institutes. A web site will be established to disseminate information on research progress and findings.

该研究项目旨在更好地了解海啸以及由近海岸滑坡（包括空中和水下滑坡）产生的海啸的相关上升。 该项目包括一个综合的实验和理论（数值）部分，以开发基于两相雷诺平均纳维尔-斯托克斯（RANS）方程和离散元模型（DEM）的模拟模型。 除了测量自由表面高度和助跑高度外，还将使用粒子成像测速法（PIV）等光学技术详细测量流体速度和材料滑动速度。 大规模实验将在俄勒冈州州立大学NEES进行（地震工程模拟网络）波浪盆地。目标是：（1）表征三维固体滑动产生的波浪，以及颗粒物的起始、变形和传播过程（2）参数化与颗粒和固体滑坡产生的海啸相关的上升和向岸淹没;（3）提高海啸、海岸线和移动颗粒和固体滑坡之间复杂动力相互作用的数值模型的能力;（4）建立基准问题，以研究颗粒和固体滑坡产生的波浪，并提供高质量的实验数据，以验证数值模拟模型。流体力学、固体力学、土壤力学和应用数学。 它将分析和实验方法与实验测量相结合，从而合理开发新的和改进的数值模型。 此外，这项研究的结果将纳入光盘《海啸：了解巨浪》的修订版，该光盘已分发给许多高中、科学博物馆、图书馆和研究机构。 将建立一个网站，传播关于研究进展和结果的信息。