Large eddy simulation of turbulent wind over realistic seas with frequent wave breaking events
具有频繁波浪破碎事件的真实海洋上的湍流风的大涡模拟
基本信息
- 批准号:0824906
- 负责人:
- 金额:$ 25.96万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2008
- 资助国家:美国
- 起止时间:2008-09-01 至 2013-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Air-sea interaction under high wind and sea state conditions is one of the most important, yet least understood research areas of physical oceanography and marine meteorology. Breaking waves, which support a significant fraction of air-sea momentum flux, alters the turbulence field inside the atmospheric boundary layer. This variation results in insufficient estimations of (Reynolds) numbers which are used in boundary layer models and predictions. The Large Eddy Simulation (LES) is a promising new model that will take the effects of ocean surface waves into account when modeling turbulence dynamics inside the atmospheric boundary layer. Through this research, oceanographers and atmospheric scientists from the University of Rhode Island, the National Center for Atmospheric Research, and the University of Reading will develop a new atmospheric boundary layer LES methodology that accounts for intermittent breaking wave events. This simulation will allow for a detailed investigation of the effects of breaking waves on boundary layer turbulence and air-sea momentum flux and will provide the framework to investigate sea spray generation, evolution, and its impact on air-sea heat flux. The results from this research will provide a basis for understanding how surface breaking waves affect and air-sea interactions, which could be used in more accurately forecasting extreme winds and waves during natural hazard events.
大风海况下的海气相互作用是物理海洋学和海洋气象学中最重要但却最不为人所知的研究领域之一。海气动量通量的很大一部分是由破碎波提供的,它改变了大气边界层内的湍流场。这种变化导致对边界层模式和预报中使用的(雷诺数)数估计不足。大涡模拟(LES)是一种很有前途的新模式,它在模拟大气边界层内的湍流动力学时将考虑海面波的影响。通过这项研究,来自罗德岛大学、国家大气研究中心和雷丁大学的海洋学家和大气科学家将开发一种新的大气边界层LES方法,该方法可以解释间歇性破碎波事件。这一模拟将允许详细研究破碎波对边界层湍流和海气动量通量的影响,并将为研究海雾的产生、演变及其对海气热通量的影响提供框架。这项研究的结果将为了解海面破碎波的影响和海气相互作用提供基础,可以用于更准确地预测自然灾害事件期间的极端风浪。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Tetsu Hara其他文献
Tetsu Hara的其他文献
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{{ truncateString('Tetsu Hara', 18)}}的其他基金
Collaborative Research: Wind turbulence over shoaling surface waves and their impact on air-sea fluxes
合作研究:浅滩表面波的风湍流及其对海气通量的影响
- 批准号:
2048752 - 财政年份:2021
- 资助金额:
$ 25.96万 - 项目类别:
Standard Grant
Collaborative Research: Airflow separations over wind waves and their impact on air-sea momentum flux
合作研究:风浪上的气流分离及其对海气动量通量的影响
- 批准号:
1458984 - 财政年份:2015
- 资助金额:
$ 25.96万 - 项目类别:
Standard Grant
Collaborative Research: Langmuir Turbulence Under Tropical Cyclones
合作研究:热带气旋下的朗缪尔湍流
- 批准号:
1129985 - 财政年份:2011
- 资助金额:
$ 25.96万 - 项目类别:
Standard Grant
Workshop on air-sea interactions under tropical cyclones (hurricanes)
热带气旋(飓风)下海气相互作用研讨会
- 批准号:
0940398 - 财政年份:2009
- 资助金额:
$ 25.96万 - 项目类别:
Standard Grant
Generation of sea sprays and their impact on near surface turbulence and air-sea momentum flux
海浪的产生及其对近地表湍流和海气动量通量的影响
- 批准号:
0927014 - 财政年份:2009
- 资助金额:
$ 25.96万 - 项目类别:
Standard Grant
Collaborative Research: Breaking Wave Effects on Wave Boundary Layer and Air-Sea Momentum Flux
合作研究:破碎波对波浪边界层和海气动量通量的影响
- 批准号:
0526177 - 财政年份:2005
- 资助金额:
$ 25.96万 - 项目类别:
Standard Grant
Air-Sea Momentum Flux at High Sea States
公海状态的海气动量通量
- 批准号:
0002314 - 财政年份:2000
- 资助金额:
$ 25.96万 - 项目类别:
Standard Grant
Air-Sea Gas Transfer in Coastal Waters
沿海水域海气输送
- 批准号:
9409222 - 财政年份:1994
- 资助金额:
$ 25.96万 - 项目类别:
Continuing Grant
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