GOALI: Collaborative Research: Thermal and Flow Control for Airfoil-Endwall Junctures

GOALI：协作研究：翼型端壁接合处的热和流量控制

• 批准号: 0412929
• 负责人: Lee Langston
• 金额: --
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-05-15 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0412929&HistoricalAwards=false
• 关键词: GOALI; Collaborative; Research; Thermal; Flow

ABSTRACTPROPOSAL NO.: CTS-0412971 AND 0412929PROPOSAL TYPE: INVESTIGATOR INITIATED (GOALI COLLABORATIVE)PRINCIPAL INVESTIGATORS: KAREN A. THOLE AND LEE S. LANGSTONINSTITUTION: VIRGINIA POLYTECHNIC INST./UNIVERSITY OF CONNECTICUT GOALI: COLLABORATIVE RESEARCH: THERMAL AND FLOW CONTROL FOR AIRFOIL-ENDWALL JUNCTURESThe goal of the research program is to advance fundamental understanding of three dimensional flows and their consequences on heat transfer in turbomachines. A primary objective is to define an approach for industry to use in modifying junctures at the turbine airfoil-platform interface to reduce the presence of three-dimensional flows and their effects on both aerodynamic losses and heat transfer. The intellectual merit consists of investigating the following fundamental issues: the impact of a geometric modification at the leading edge-platform juncture on the development of the secondary flows within an airfoil passage; the impact of a geometric modification on the aerodynamic loss and surface heat transfer; and the influence of compressibility on these modifications at the leading edge-platform juncture. The broader impact of this investigation includes determining a new methodology that can be applied to reduce the impact of three-dimensional flows present in all turbomachines. From an economical consideration, it is important that the US remain a stronghold in both military propulsion and power generation. The knowledge and understanding gains from this investigation allow the US to make more efficient use of energy resources and to retain its stronghold in the gas turbine sector of the economy. The success of this new approach to designing turbine airfoils will impact the $200B electric power generation industry, which requires $20B-30B/year in gas turbine equipment. The broader impacts include training of graduate students at two different institutions and their participation in the industrial collaboration. In addition to the students involved directly with the research, a number of students will be educated on relevant issues in the gas turbine area by the Pratt and Whitney industrial team member. The PI's are strongly committed to increasing participation of underrepresented groups in the US, and Prof. Karen Thole already has a strong track record in this area.*co-funded jointly by the Fluid Dynamics & Hydraulics, Thermal Transport & Thermal Processing programs

摘要提案编号：CTS-0412971 和 0412929 提案类型：研究者发起（Goali 协作） 主要研究者：Karen A. Thole 和 Lee S. Langston 机构：弗吉尼亚理工学院/康涅狄格大学 目标：合作研究：翼型端壁接合处的热和流动控制该研究计划的目标是推进 对三维流动及其对涡轮机传热的影响的基本了解。 主要目标是为工业界定义一种方法，用于修改涡轮机翼型-平台界面处的接缝，以减少三维流的存在及其对空气动力损失和传热的影响。 智力价值包括研究以下基本问题：前缘平台接合处的几何修改对翼型通道内二次流发展的影响；几何修改对空气动力损失和表面传热的影响；以及压缩性对前沿平台接合处这些修改的影响。 这项调查的更广泛影响包括确定一种新方法，可用于减少所有涡轮机中存在的三维流动的影响。 从经济角度考虑，美国在军事推进和发电领域保持优势非常重要。 通过这次调查获得的知识和理解使美国能够更有效地利用能源资源并保持其在燃气轮机经济领域的据点。 这种设计涡轮翼型的新方法的成功将影响价值 200B 美元的发电行业，该行业每年需要 20B-30B 美元的燃气轮机设备。更广泛的影响包括在两个不同机构培训研究生以及他们参与行业合作。 除了直接参与研究的学生之外，普惠工业团队成员还将对一些学生进行燃气轮机领域相关问题的教育。 PI 坚定致力于增加美国代表性不足群体的参与，Karen Thole 教授在这一领域已经拥有良好的记录。*由流体动力学与液压、热传输与热处理项目共同资助