摘要
微重力多相热流体动力学是在航天(尤其是载人航天)事业快速发展推动下形成的一门新兴交叉学科,研究空间微、小重力环境中多相热流体体系的流动、传热与传质等基本规律及其应用,重力效应是关注的核心课题。本文系统分析和评述了多相热流体系统中重力无关性准则研究的主要进展,就基于主导作用力、流动沸腾中的单气泡行为以及气液两相环状流界面波和弹状流液泛现象等的3类重力无关性准则进行了详细的分析和讨论,以增强对其理论和/或经验基础的认识,进而开展更深入的研究,为航天应用多相热流体技术研发服务。同时,相关成果对地面常重力环境多相热流体系统(尤其是微通道多相热流体系统)相关技术应用也有着明确的指导意义。
Microgravity multiphase thermal fluid dynamics is a newly formed interdisciplinary subject motivated by the rapid progress of space engineering, especially the manned spaceflight. Its topics include the fundamentals of flow, heat and mass transfer of multiphase thermal fluid system in low and microgravity in space, as well as their applications. The gravity effect is one of the key problems in the field of microgravity multiphase thermal fluid dynamics, which has attracted wide attention. In this paper, the main progress of gravity-independent criteria in multiphase thermal fluid systems is reviewed exhaustively. Three kinds of gravity-independent criteria based on the dominant force, single bubble behavior in flow boiling, interfacial wave in gas-liquid two-phase annular flow and flooding in slug flow are analyzed and discussed in detail to improve the understanding of their theoretical and/or empirical bases and to promote further research. The results are helpful for the research and development of multiphase thermal fluid technology in space applications, as well as for those in ground applications, such as micro-channel multiphase thermal fluid system.
作者
杜王芳
乐述文
赵建福
李凯
DU Wang-fang;YUE Shu-wen;ZHAO Jian-fu;LI Kai(CAS Key Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences, 100190, Beijing, China;School of Engineering Science, University of Chinese Academy of Sciences, 100049, Beijing, China)
出处
《河北水利电力学院学报》
2019年第2期1-7,共7页
Journal of Hebei University Of Water Resources And Electric Engineering
基金
国家自然科学基金项目(11802314)
中国科学院前沿科学重点研究计划项目(QYZDY-SSW-JSC040)
关键词
微重力多相热流体动力学
重力效应
重力无关性
microgravity multiphase thermal fluid dynamics
gravity effect
gravity independence
