离心叶轮机械内部流动的研究进展

随着测量技术及数值算法的不断进步,叶轮机械内部流动研究有了很多新的进展.本文就半个世纪以来离心叶轮机械内部流动的实验及数值模拟研究进行了评述,根据作者掌握的文献,着重在以下几方面展开综述:叶轮内部流动、叶顶间隙泄漏流动、扩压器内部流动及叶轮与扩压器相互作用的非稳态流动等等.文中分别阐述了国内外学者在上述流动研究方面的主要成果,指出了这些研究的特点及其不足,分析了我国在这些领域与国际水平的差距,并结合作者自己的研究工作对离心叶轮机械内流研究提出了建议. 

THE RESEARCH DEVELOPMENT OF INTERNAL FLOW IN CENTRIFUGAL TURBOMACHINERY

Any advances in the internal flow of centrifugal turbomachinery was obtained with the development of measurement techniques and numerical methods. In this paper, the research development in the past half century of the internal flow in centrifugal turbomachinery is comments. This review includes: flows inside the impeller and diffusers, tip leakage flows, the unsteady flows between impeller and diffuser. Research achievements in this field are summarized and some reviewed are made based on author's research work.