EAGER: Collaborative Research: Cloaking in stratified fluids

EAGER：合作研究：分层流体中的隐形

• 批准号: 1414581
• 负责人: Arezoo Ardekani
• 金额: $ 4.99万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-02-01 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1414581&HistoricalAwards=false
• 关键词: EAGER; Collaborative; Research; Cloaking; stratified

PI: Alam, M.-Reza/Ardekani, ArezooProposal Number: 1414579/1414581Institution: University of California-BerkeleyTitle: EAGER: Collaborative Research: Cloaking in stratified fluidsThe objective of the proposed research is to explore the possibility of developing and deploying the equivalent of an "invisibility cloak" to render floating wind energy harvesting turbines invisible to ocean surface waves. Invisibility cloaks, made of metamaterial, have identified as one of the top ten important discoveries in solid state physics, optics, and acoustics in the first decade of 21st century, but this is now being discussed in the context of fluid mechanics and water waves.Intellectual MeritAn invisibility cloak for an object at the water surface can be accomplished when the surface waves detour the object as if the object does not exist, i.e., when there is no diffraction. An important consequence of such a cloaking is that floating structures and objects in a cloaked region will be protected from powerful incoming surface waves. The proposed research will take first strides into this area in a fluid mechanics context by using a combined theoretical, computational, and experimental approach. The research is focused on the effect of buoyancy jump (typical of oceans and lakes), viscosity, inertia, diffusion, and non-uniformities of seabed topography on cloaking in both sharp and continuous stratified fluids.Broader ImpactsThis research program can lead to designing new strategies to protect moving and stationary ocean objects (ships, submarines, offshore platforms such as wind turbines) from disruptive effects of oceanic waves. In this work, fundamental fluid mechanics will be used to augment this area of aquatic science and oceanography. The proposed research is potentially transformative in that this area of fluid mechanics has to date gone mostly unexplored. The grant will also provide partial support for training two graduate students. The participation of women and members of underrepresented groups will be facilitated through the Women's Engineering Program at University of California Berkeley and Notre Dame. The PIs will ensure the participation of undergraduates through the Undergraduate Research Opportunity Program at both Berkeley and Notre Dame.

PI：Alam，M.-Reza/Ardekani，Arezoopopasal编号：1414579/1414581institution：加利福尼亚大学 - 伯克利大学 - 伯克利特大学：急切研究：合作研究：分层的流体中，所提议的研究的目标是探索持续的界限，探索了界限的可能性，探索了界限的可能性。海洋表面波不可见的涡轮机。由超材料制成的隐形斗篷已被确定为21世纪前十年固态物理，光学和声学中十大重要发现之一，但是现在正在对流体力学和水浪进行讨论。不是衍射。这种掩饰的重要结果是，掩盖区域中的浮动结构和物体将受到强大传入的表面波的保护。拟议的研究将通过使用合并的理论，计算和实验方法在流体力学环境中首次进入这一领域。 The research is focused on the effect of buoyancy jump (typical of oceans and lakes), viscosity, inertia, diffusion, and non-uniformities of seabed topography on cloaking in both sharp and continuous stratified fluids.Broader ImpactsThis research program can lead to designing new strategies to protect moving and stationary ocean objects (ships, submarines, offshore platforms such as wind turbines) from disruptive effects of oceanic waves.在这项工作中，基本的流体力学将用于增强水上科学和海洋学的这一领域。拟议的研究具有潜在的变革性，因为迄今为止，这一流体力学领域的发展大部分未探索。该赠款还将为培训两名研究生提供部分支持。妇女和代表性不足的群体的参与将通过加利福尼亚大学伯克利分校和巴黎圣母院的妇女工程计划促进。 PI将通过伯克利和巴黎圣母院的本科研究机会计划确保本科生的参与。