Collaborative Research: ITR- (ASE+EVS)-(dmc+sim): Coastal Modeling and Management

合作研究：ITR- (ASE EVS)-(dmc sim)：海岸建模与管理

• 批准号: 0426811
• 负责人: Britt Raubenheimer
• 金额: --
• 依托单位: Woods Hole Oceanographic Institution
• 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: 2004-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0426811&HistoricalAwards=false
• 关键词: Collaborative; Research; ITR; ASE+EVS; dmc+sim

ABSTRACTPROPOSAL NO.: CTS-047014, 0426811, 0427115PRINCIPAL INVESTIGATORS: P. LYNETT, B. RAUBENHEIMER, P. LIUINSTITUTION: TEXAS A&M UNIVERSITY, WOODS HOLE OCEAN INST., CORNELL UNIVERSITY COLLABORATIVE: ITR COASTAL MODELING AND MANAGEMENTThe goal of this grant to develop a coupled, hybrid hydrodynamic computational model for simulation and prediction of complex water wave processes from the deep ocean to the shoreline. The model will be physically comprehensive, with total domain scales on the order of hundred's of kilometers, yet with a nearshore grid resolution less than a meter. To include this great range of scales, a number of diverse hydrodynamic models, with various but overlapping physical and practical constraints, will be integrated to create a hybrid hydrodynamic software tool. The method of interfacing the different hydrodynamic models will be founded in distributed computing techniques, thereby allowing for utilization of computer cluster resources. In addition, each of the individual models in the hybrid system will be parallelized, leading to the creation of a massively parallel and distributed simulation platform. Coupled with the hybrid hydrodynamic model will be sediment transport formulations, such that morphological change in the nearshore (i.e. beach erosion) can be simulated. These formulations will employ the fine resolution and high fidelity wave forcing from the hydrodynamic model, including the effects of strong turbulence in the breaker, surf, and swash zones. Validation of the coupled model will use established datasets from field studies and controlled experiments. The technology infrastructure developed to pass information between the various coupled models will be transparent and expandable, such that as more sophisticated models become available, they may be plugged into the existing simulator. The coupled simulator will be utilized by practicing engineers for design of coastal protection measures and by policy makers who may need better estimations of wave impact and erosion due to extreme events. By influencing future design and policy decisions, the simulator will contribute towards the goal of sustainable coastal margins. Education and outreach will be accomplished through the unveiling of a web-based, open access, coastal simulator. The website will be completely free access, open to college and high school students, as well as academics and engineers. The coastal simulator will be used remotely for senior level coastal engineering design classes. It would be of immense impact to be able to show these students first-hand the level of uncertainty and possible error in common engineering tools through comparison with the high accuracy model developed here, such that they are in a much better position to interpret the predictions when they become practicing engineers. Jointly funded by the Division of Chemical & Transport Systems, Fluid Dynamics & Hydraulics (FDH) program, and the Division of Ocean Sciences (OCE).

Abstract Propoposo No。：CTS-047014，0426811，0427115 Principal研究人员：P。Lynett，B。Raubenheimer，P。Liuinstitution：Texas A＆M University，Woods Hole Ocean Inst。一个耦合的混合流体动力计算模型，用于模拟和预测从深海到海岸线的复杂水波过程。 该模型将在物理上是全面的，总域尺度在数百公里处，但近海网格分辨率小于一米。 为了包括这些范围范围的量表，将集成多种不同但重叠的物理和实践约束的多种流体动力模型，以创建混合流体动力软件工具。 连接不同流体动力模型的方法将建立在分布式计算技术中，从而允许利用计算机群集资源。此外，混合系统中的每个单个模型都将并行化，从而创建一个大规模平行和分布式的仿真平台。 结合杂交流体动力学模型将是沉积物传输制剂，因此可以模拟近海的形态变化（即海滩侵蚀）。 这些配方将采用流体动力模型的精细分辨率和高保真波强迫，包括断裂物，冲浪和偏离区域中强湍流的影响。 耦合模型的验证将使用现场研究和受控实验的已建立数据集。开发的技术基础架构是为了传递各种耦合模型之间的信息，将是透明且可扩展的，因此，随着更复杂的模型可用，它们可能会插入现有的模拟器中。 耦合的模拟器将通过实践工程师设计沿海保护措施以及可能需要更好地估计由于极端事件而对波浪影响和侵蚀进行更好估算的政策制定者使用。 通过影响未来的设计和政策决策，模拟器将促进可持续沿海利润的目标。 教育和宣传将通过基于网络的开放访问，沿海模拟器的揭幕来实现。 该网站将完全免费访问，向大学和高中生以及学者和工程师开放。沿海模拟器将远程用于高级沿海工程设计课程。 通过与此处开发的高准确性模型进行比较，能够直接向这些学生展示这些学生的不确定性和可能的​​错误水平和可能的错误，这将产生巨大的影响，以便他们更好地解释预测当他们成为执业工程师时。 由化学与运输系统，流体动力学与液压药（FDH）计划以及海洋科学司（OCE）共同资助。