U.S.-Korea Cooperative Research on Effects of Interfacial Structure on Film Condensation and Aerosol Transport in a Noncondensible Gas

这项提案要求获得资金，以允许威斯康星大学核工程系Michael L.Corradini博士与浦项理工学院(POSTECH)机械工程系Kim Moohwan博士开展为期24个月的合作研究计划，研究在存在不可凝结气体的情况下，界面结构对薄膜凝结和气溶胶传输的影响。威斯康星大学的PI将进行两个主要的测试系列，(1)将使用空气/蒸汽-水系列来表征界面波对凝结换热系数的影响，以及(2)利用混合气体中包含的气溶胶重复这些测试，以研究不同空汽比下蒸汽凝结对气溶胶传输的影响。POSTECH的配套研究工作将致力于分析实验数据，并将结果与韩国合作者开发的凝聚模型进行比较。除了该项目作为一项基础研究研究的重要性外，这项研究对于了解被动冷凝如何有助于在严重的核反应堆事故中从空气/蒸汽-水混合物中去除放射性气溶胶也很重要。该项目将为威斯康星大学正在进行的研究增加一个国际合作层面，由国家科学基金会在第号补助金下提供支持。MEA8351983，为期5年的总统青年调查员(PYI)奖。该项目与美韩合作科学计划的目标相关，该计划旨在通过交流科学信息、想法、技能和技术以及通过在互利问题上的合作来提高美国和韩国科学家和工程师之间的合作水平。

This proposal requests funds to permit Dr. Michael L. Corradini, Department of Nuclear Engineering, University of Wisconsin to pursue with Dr. Moohwan Kim, Mechanical Engineering Department, Pohang Institute of Technology (POSTECH), for a period of 24 months, a program of cooperative research on the effect of interfacial structure on film condensation and aerosol transport in the presence of a noncondensable gas. Two major test series will be conducted by the PI at the University of Wisconsin, (1) an air/steam-water series will be used to characterize the effects of interfacial waves on the condensation heat transfer coefficient and (2) a repeat of these tests with aerosols included in the gas mixture to investigate the effect of steam condensation on aerosol transport under various air-steam ratios. The companion research effort at POSTECH will be directed toward analyzing the experimental data and comparing the results with a condensation model developed by the Korean collaborator. In addition to the importance of the project as a basic research study, this research is important to an understanding of how passive condensation can assist in the removal of radioactive aerosols from air/steam-water mixtures in severe nuclear reactor accidents. This project will add an international cooperative dimension to ongoing research at the University of Wisconsin supported by the National Science Foundation under Grant No. MEA8351983, a 5-year Presidential Young Investigator (PYI) award. This project is relevant to the objectives of the U.S.-Korea Cooperative Science Program which seeks to increase the level of cooperation between U.S. and Korean scientists and engineers through the exchange of scientific information, ideas, skills, and techniques and through collaboration on problems of mutual benefit.