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

摘要提案编号： CTS-0412971和0412929提案类型： 发起人（目标协作）主要发起人：Karen A. Thole和Lee S.朗斯通机构： 弗吉尼亚理工大学/康涅狄格大学戈利分校：合作研究：翼型端壁连接的热和流动控制研究计划的目标是促进对三维流动及其对机翼传热影响的基本理解。 主要目的是为工业界确定一种方法，用于修改涡轮机翼型-平台界面处的连接处，以减少三维流的存在及其对气动损失和传热的影响。 智力的优点包括调查以下基本问题：在前缘平台接合处的几何修改的影响，在翼型通道内的二次流的发展;的影响的几何修改的气动损失和表面传热;和压缩性的影响，这些修改在前缘平台接合处。 这项调查的更广泛的影响包括确定一种新的方法，可以应用于减少三维流动的影响，目前在所有的管道。 从经济上考虑，美国在军事推进和发电方面都保持据点地位是很重要的。 从这次调查中获得的知识和理解使美国能够更有效地利用能源资源，并保持其在燃气涡轮机经济部门的据点。 这种设计涡轮机翼型的新方法的成功将影响价值2000亿美元的发电行业，该行业每年需要200亿至300亿美元的燃气涡轮机设备。更广泛的影响包括在两个不同的机构培训研究生，以及他们参与工业合作。 除了直接参与研究的学生外，普惠工业团队成员还将对一些学生进行燃气涡轮机领域相关问题的教育。 PI强烈致力于增加美国代表性不足的群体的参与，Karen Thole教授在这方面已经有了很好的记录。由流体动力学水力学、热传输和热处理项目共同资助

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