High Reynolds Number Boundary Layer Turbulence: Integrating Descriptions of Statistical Structure, Scaling and Dynamical Evolution at Univ of New Hampshire, Nov 20-22, 2013.

高雷诺数边界层湍流：统计结构、尺度和动态演化的集成描述，新罕布什尔大学，2013 年 11 月 20-22 日。

• 批准号: 1359025
• 负责人: Joseph Klewicki
• 金额: $ 0.98万
• 依托单位: University of New Hampshire
• 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: 2013-11-01 至 2014-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1359025&HistoricalAwards=false
• 关键词: Reynolds; Number; Boundary; Layer; Turbulence

1359025KlewickiThe past decade has seen transformational advances in turbulence experimentation and simulation, and these have allowed the unprecedented capability to study the detailed temporal and spatial structure of turbulent boundary layers. Furthermore, recently developed facilities and sensors around the globe are now allowing access to turbulence structure at significantly higher Reynolds numbers than previously studied. As a result, our understanding of boundary layer dynamics is now progressing at an ever increasing pace. It is timely to review, discuss and advance beyond these developments. The proposal seeks funds to partially cover expenses related to the organization of a workshop on "High Reynolds Number Boundary Layer Turbulence: Integrating Descriptions of Statistical Structure, Scaling and Dynamical Evolution", to be held at the campus of the University of New Hampshire, from November 20-22, 2013. The workshop will be targeted specifically to high Reynolds number turbulence. Intellectual MeritBoundary layer dynamics are pervasive in numerous scientific processes and technologically important applications. For these reasons, the capacity to better predict boundary layer behavior, and especially at high Reynolds numbers, persists as a high value objective. The specific aims of this workshop are to (i) provide an interactive setting where the latest findings of this rapidly advancing field can be presented and discussed at length, and (ii) bring together the established and emerging protagonists of boundary layer research (experts in experiments, simulation and analysis) with a cadre of applied mathematicians who are leaders in advancing the systematic development of reduced order models of complex fluid flows. An overarching aim is to more deeply explore how our new and emerging understandings of boundary layer dynamics can be used to benefit the development of more accurate, computationally efficient and more well-founded models of the high Reynolds number boundary layer.Broader ImpactBetter understanding of turbulent boundary layers at very high Reynolds numbers will lead to improved understanding of a number of engineering and physics problems, such as aerospace applications, meteorology and weather prediction, pollutant dispersion in the atmosphere and in rivers and oceans, energy production with wind farms, etc. This understanding may also allow the design of fluid transportation systems or vessels that require less energy to operate. The proposed workshop will bring together researchers who work on a number of allied problems, but, in many cases, are not yet natural collaborators. The expertise of the attendees is chosen to cover the disciplinary foci that are deemed to span the elements required to develop and refine the systematic construction of the accurate reduced order models for the high Reynolds number turbulent boundary layer; a timely goal that now seems within reach. Given this, the proposed workshop will promote two primary broader impacts. The first is directed toward the formation of a research community whose members have an understanding of the full scope of elements that must rationally be understood if the envisioned modeling paradigm(s) are to be realized. The second is to initiate collaborations amongst the participants, and thus substantively promote the specific areas of inquiry required to advance reduced order model development and implementation. While there will be no formal proceedings of the workshop, the individual presentations will be collected in electronic form, and will subsequently be made available on a public website.

在过去的十年里，湍流实验和模拟取得了巨大的进步，这些进步使得研究湍流边界层详细的时空结构的能力达到了前所未有的水平。此外，最近在地球仪上开发的设施和传感器现在允许在比以前研究的雷诺数高得多的雷诺数下获得湍流结构。因此，我们对边界层动力学的理解正在以不断增长的速度发展。审查、讨论和超越这些事态发展是及时的。 该提案寻求资金，以部分支付与组织“高雷诺数边界层湍流：统计结构、尺度和动态演变综合描述”讲习班有关的费用，该讲习班将于2013年11月20日至22日在新罕布什尔州大学校园举行。研讨会将专门针对高雷诺数湍流。边界层动力学在许多科学过程和重要的技术应用中是普遍存在的。由于这些原因，更好地预测边界层行为的能力，特别是在高雷诺数下，仍然是一个高价值的目标。这次研讨会的具体目标是（i）提供一个互动的环境，在这里可以介绍和详细讨论这一迅速发展的领域的最新发现，（ii）汇集边界层研究的知名人士和新兴人士（实验专家，模拟和分析）与应用数学家的干部谁是领导者，在推进系统的发展，减少秩序模型的复杂流体流动。总体目标是更深入地探索我们对边界层动力学的新的和正在出现的理解如何能够用于有益于开发更准确、计算效率更高和更有根据的高雷诺数边界层模型。更广泛的影响更好地理解非常高雷诺数下的湍流边界层将导致对许多工程和物理问题的更好理解，例如航空航天应用、气象学和天气预测、大气中以及河流和海洋中的污染物扩散、风力发电场的能量生产等。这种理解还可以允许设计需要较少能量来操作的流体运输系统或船舶。 拟议的研讨会将汇集研究人员谁的工作在一些相关的问题，但在许多情况下，还没有自然的合作者。与会者的专业知识被选择来涵盖被认为跨越了开发和完善高雷诺数湍流边界层精确降阶模型的系统构建所需的要素的学科焦点;这是一个现在似乎触手可及的及时目标。有鉴于此，拟议的讲习班将促进两个主要的更广泛的影响。第一个目标是形成一个研究共同体，其成员对所有要素都有理解，如果要实现所设想的建模范式，就必须理性地理解这些要素。第二是在参与者之间发起合作，从而实质性地促进推进降阶模型开发和实施所需的特定研究领域。虽然讲习班没有正式会议记录，但将以电子形式收集个人发言，随后将在一个公共网站上提供。