Collaborative Research: Power Generation from Fluid-Structure Interaction using Mathematical, Computational and Experimental Modeling

合作研究：利用数学、计算和实验模型通过流固耦合发电

• 批准号: 1307778
• 负责人: Earl Dowell
• 金额: $ 16.25万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1307778&HistoricalAwards=false
• 关键词: Collaborative; Research; Power; Generation; Fluid

Intellectual Merits: The interaction of a flowing fluid and a deformable structure or solid is one of the richest sources of mathematical challenges and fundamental physical phenomena with important applications to engineering and technology including energy harvesting and power generation. The physical phenomena of interest range from blood flows in arteries, to airflow over an oscillating tongue that can lead to clinical dangerous and potentially fatal oscillations, to flow over flexible long span bridges and tall buildings, to flow over and around flight vehicles over a wide range of scales from micro air vehicles to modern passenger airliners, to fluid-structural systems whose limit cycles may be a source of energy harvesting and power generation. It is this last application that motivates much of the proposed work. While in many applications the concern is that the limit cycle oscillations will damage the mechanical integrity of the fluid/structural system, in the energy harvesting and power generation application these oscillations will be both novel and beneficial.The methods that have been proposed to better understand and exploit these phenomena include theoretical models of high sophistication including the continuum models of the fluid and the structure. While analytical solutions continue to be sought and found, computational models that tax the resources of the most powerful computers also play an important role, as do scale model experiments based upon a sound fundamental analysis and understanding of the first principles of the relevant continuum models. Indeed, it is by exploiting the complementary strengths of each approach theoretical modeling, computational modeling, and experimental scale models that the deepest and richest insights can be obtained.Broader Impact: This proposal brings together senior investigators from three major research institutions covering a wide range of intellectual experience from modern mathematics to rigorously based computational models to multidisciplinary experiments to address fluid-structure interaction phenomena. This research will also provide an opportunity for graduate students and post-doctoral visitors to participate and learn in this rich environment.

智力优势：流动的流体与可变形的结构或固体的相互作用是数学挑战和基本物理现象的最丰富来源之一，在工程和技术中具有重要应用，包括能量收集和发电。令人感兴趣的物理现象从动脉中的血液流动，到可能导致临床危险和潜在致命振荡的振荡舌头上的气流，到流经灵活的大跨度桥梁和高楼，到在从微型飞行器到现代客机的各种尺度上的飞行器上方和周围流动，到流体结构系统，其极限循环可能是能量收集和发电的来源。正是这最后一个应用程序激发了大部分拟议的工作。虽然在许多应用中，人们担心极限环振荡会破坏流体/结构系统的机械完整性，但在能量收集和发电应用中，这种振荡将是新的和有益的。已提出的更好地理解和利用这些现象的方法包括高度复杂的理论模型，包括流体和结构的连续介质模型。在继续寻求和发现分析解决方案的同时，耗费最强大计算机资源的计算模型也发挥了重要作用，基于对相关连续介质模型的基本原理的合理分析和理解的比例模型实验也发挥了重要作用。事实上，正是通过利用每种方法的互补优势，理论建模、计算建模和实验规模模型才能获得最深刻和最丰富的见解。广泛影响：这项建议汇集了来自三大研究机构的高级研究人员，涵盖了从现代数学到严格基于计算模型的广泛智力经验，再到多学科实验，以解决流固相互作用现象。这项研究也将为研究生和博士后访客提供一个在这个丰富的环境中参与和学习的机会。