摘要
磁场作用下导电流体的流动稳定性研究在电磁材料制备过程以及核聚变反应堆冷却系统的设计与制造有重要意义。文中简述了流动稳定性研究的主要方法,分析了正则模态和非正则模态两种方法的利弊,因两类方法所考察的扰动的增长形式不同,其结论往往不一致;对近十几年磁场作用下导电流体在不同形状管道内的流动稳定性研究进展进行了分类和概述,主要介绍了磁场方向、壁面导电率对流动稳定性的影响;针对相关实验的开展、稳定性分析方法以及对转捩机理的研究等提出了可能值得深入研究的方向。
The stability of conducting fluid flow is vital to the electromagnetic processing ofmaterials and the design and operating of thermonuclear fusion reactorcooling system. In thispaper, the analysis methods for flow stability based on normal modes and non-normal modes areintroduced and compared. Different critical parameters threshold are often obtained with thesetwo methods, this is mainly due to different growth mode of perturbations is concerned in eachmethod. The recent experimental and computational results obtained for flows in pipes, ducts andchannels in the presence of magnetic field are reviewed, especially the effects of magnetic fieldand conductivity of the walls are elaborated. The further investigations on the relatedexperiments, stability analysis methods and the transition mechanisms are discussed.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2017年第B11期17-26,共10页
Chemical Industry and Engineering Progress
基金
国家自然科学基金青年科学基金(11302076)
河北省自然科学基金(A2014502047)
中央高校基本科研业务费(2014MS111)项目
