GOALI collaboration to advance transition and turbulence modeling

GOALI 合作推进转变和湍流建模

• 批准号: 0965717
• 负责人: Paul Durbin
• 金额: $ 26.11万
• 依托单位: Iowa State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-10-01 至 2014-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0965717&HistoricalAwards=false
• 关键词: GOALI; collaboration; advance; transition; turbulence

0965717DurbinThis GOALI proposal has the purpose of establishing a technical exchange between the Aerospace Engineering department at Iowa State University (ISU) and General Electric-Global Research Center (GRC) in Niskayana, NY. Engineers at GRC will visit ISU to give lectures to undergraduates and to establish research collaborations. GRC participants will provide first hand insights into engineering in a major aerospace company to undergraduates. Several applications of concern to GRC demand improvements in their ability to predict turbulent transport and in their ability to predict transition between laminar and turbulent states of fluid flow. ISU faculty have expertise in these areas. The practical applications will stimulate basic research at ISU and be the avenue to transfer basic research into industrial practice.Intellectual Merit:The last decade has seem significant progress in the theory of boundary layer transition induced by incident disturbances wakes or free-stream turbulence. Direct numerical simulations have produced substantial insight into mechanisms, and has created data that would be difficult to produce in a laboratory. However, practical modeling is at an early stage. The time is ripe for an industry/academia collaboration to bring basic developments to bear on practice. By contrast, closure modeling for turbulent transport is well established. Its limitations are well known; but it remains the primary tool for practical flow prediction in the foreseeable future. Advanced propulsion concepts and energy technologies that involve fluid flow are increasingly explored by computer simulations that require analytical closure models. The PIs in this program have mutual interest in improving models and adapting them to these needs. This GOALI proposal promises to tackle these challenges through academics and R & D engineers joining forces.Broader impacts:It is inherent in the formulation of this program that it will have an impact on education and will foster collaboration that would not otherwise take place. The Aero department at Iowa State strongly encourages undergraduate participation in research. Each year there is a Spring forum at which students present talks on their work. This GOALI program will provide students with extended access to GE engineers. Students will be encouraged to pursue careers in engineering; GE may recruit top ISU students.Engineers from GE-GRC will visit ISU to foster collaboration that can continue beyond the framework of GOALI. This long term relation will have a lasting. All research that occurs specifically under the aegis of NSF will be disseminated by archival publication, conference presentations, etc. It is inherent in a university industry collaboration that proprietary information will be protected against disclosure. However, the primary work done under this project will be free of proprietary restrictions.

本计划旨在建立爱荷华州立大学航空航天工程系(ISU)和纽约尼斯卡亚纳通用电气全球研究中心(GRC)之间的技术交流。GRC的工程师将访问ISU，为本科生讲课，并建立研究合作关系。GRC参与者将为本科生提供在一家大型航空公司的工程方面的第一手见解。与GRC有关的几个应用需要改进它们预测湍流传输的能力，以及它们预测流体流动的层流和湍流状态之间的转变的能力。ISU的教职员工在这些领域拥有专业知识。实际应用将促进ISU的基础研究，并成为将基础研究转化为工业实践的途径。智力上的优点：过去十年来，入射扰动、尾流或自由流湍流诱导的边界层转变理论似乎取得了重大进展。直接的数值模拟产生了对机理的大量洞察，并产生了在实验室中难以产生的数据。然而，实际建模还处于早期阶段。产业界/学术界合作将基本发展付诸实践的时机已经成熟。相比之下，湍流传输的闭合模型已经建立得很好了。它的局限性是众所周知的，但在可预见的未来，它仍然是实际流量预测的主要工具。涉及流体流动的先进推进概念和能源技术越来越多地被需要分析性闭合模型的计算机模拟所探索。本计划中的PI在改进模型并使其适应这些需求方面具有共同的兴趣。这项目标提案承诺通过学者和研发工程师的共同努力来应对这些挑战。更广泛的影响：这项计划的制定将对教育产生影响，并将促进原本不会发生的合作。爱荷华州立大学航空系强烈鼓励本科生参与研究。每年都有一个春季论坛，学生们在论坛上发表关于他们工作的演讲。这个GOALI项目将为学生提供更多接触通用电气工程师的机会。将鼓励学生从事工程工作；通用电气可能会招收ISU的尖子生。GE-GRC的工程师将访问ISU，以促进能够在目标框架之外继续下去的合作。这种长期的关系将会持续下去。在NSF的支持下进行的所有研究都将通过档案出版物、会议报告等方式传播。在大学行业合作中，专有信息将受到保护，不被披露。然而，在该项目下完成的主要工作将不受所有权限制。