摘要
近十年来，人们的注意力集中到关于Ｒｎｙｌｅｉｇｈ－Ｂｅｎａｒｄ硬湍流对流的研究，得到了硬湍流状态下温度场和速度场的主要特征，证实了大尺度环流在热对流中起主导作用等，但对大尺度环流与周围流体及热卷流的相互作用机理还不很清楚，硬湍流是否为Ｒｎｙｌｅｉｇｈ－Ｂｅｎａｒｄ对流的极限状态仍有不同看法，本文将对有关这方面的研究进展作一简要的回顾，并就今后的研究工作发表一些看法．
in recent ten years, more and more attentions have been paid to the investigationof Rayleigh-Benard hard turbulent convection. The main characteristics of the velocity field andthe temperature field was obtained. It was verified that the large-scale circulation (LSC) playsan important role in heat convection, but the mechanisms of the LSC acting on the surroundingfluid and heat plume are still not clear. Furthermore, there exist different viewpoints whether thehard turbulence is the ultimate state of Rayleigh-Benard convection. In this paper, the researchprogress in this area has been reviewed briefly, and some suggestion for further investigations isalso presented.
出处
《力学进展》
EI
CSCD
北大核心
1999年第4期557-566,共10页
Advances in Mechanics
基金
香港研究资助局基金!CUHK319/96P
关键词
湍流
实验研究
湍流对流
硬湍流
大尺度
研究
turbulent flow
experimental investigation
turbulent convection
hard turbulence
large-scale circulation (LSC)
velocity field
temperature field
