NSF-CGP Science and Engineering Fellows Program: Investigation of Thermal and Fluid Dynamic Phenomena for Design of Cryogenic Pulse Tube Cooler Components

NSF-CGP 科学与工程研究员计划：低温脉冲管冷却器组件设计的热和流体动力学现象研究

• 批准号: 9522968
• 负责人: Ravikumar Kudaravalli
• 金额: $ 5.3万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-02-01 至 1997-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9522968&HistoricalAwards=false
• 关键词: NSF; CGP; Science; Engineering; Fellows

9522968 Kudaravalli This proposal supports the collaboration of Dr. Ravikumar Kudaravalli of the Department of Chemical Engineering at the University of California, Los Angeles and Professor Yoichi Matsubara of the Atomic Energy Research Institute (AERI) at the Nihon University, Chiba. Project funding will enable Dr. Kudaravalli to spend one year in Japan, resident at Nihon University, in order to investigate the thermal and fluid dynamics phenomena for design of cryogenic pulse tube cooler components for optimum performance. Dr. Kudaravalli has previously investigated the heat transfer, fluid dynamics and thermodynamic aspects of various cryogenic systems in general and heat exchangers and regenerators of cryocoolers including pulse tube coolers in particular. Professor Matsubara is one of the leading researchers in the pulse tube cryocooler area. He has pushed the technology further by multistaging of the cooler and by invention of the regenerative tube. Professor Matsubara's demonstration of liquid helium temperatures (3.6 K) is the record low temperature ever produced by a pulse tube cryocooler. Dr. Kudaravalli will combine his expertise with that of Professor Matsubara to study the thermal and fluid dynamics phenomena in cryogenic pulse tube coolers achieving optimum performance. This proposal brings together research scientists from two countries working in the area of advanced cryogenic cooler technology. The U.S. scientist will have the opportunity to become familiar with research techniques, equipment and facilities at AERI while contributing to the overall research effort. Therefore, this proposal fulfills the objectives of the program in its exchange and transfer of scientific knowledge through an international collaboration. ***

9522968 Kudaravalli 该提案支持加州大学洛杉矶分校化学工程系的 Ravikumar Kudaravalli 博士和千叶日本大学原子能研究所 (AERI) 的 Yoichi Matsubara 教授的合作。项目资金将使 Kudaravalli 博士能够在日本日本大学居住一年，以研究热和流体动力学现象，从而设计低温脉冲管冷却器组件以获得最佳性能。 Kudaravalli 博士之​​前曾研究过各种低温系统的传热、流体动力学和热力学方面，以及低温冷却器的热交换器和再生器，特别是脉冲管冷却器。松原教授是脉冲管制冷机领域的领先研究人员之一。他通过多级冷却器和蓄热管的发明进一步推动了该技术的发展。松原教授演示的液氦温度（3.6 K）是脉冲管制冷机产生的低温记录。 Kudaravalli 博士将把他的专业知识与松原教授的专业知识结合起来，研究低温脉冲管冷却器的热和流体动力学现象，以实现最佳性能。 该提案汇集了来自两国在先进低温冷却器技术领域工作的研究科学家。这位美国科学家将有机会熟悉AERI的研究技术、设备和设施，同时为整体研究工作做出贡献。因此，该提案通过国际合作实现了科学知识交流和转让的计划目标。 ***