Rayleigh-Bénard湍流对流实验研究进展  

ADVANCES IN EXPERIMENTAL INVESTIGATION OF RMLEIGH－BENARD TURBULENT CONVECTION

作　　者：王晋军[1,2] 夏克青[2] 王晋军 

机构地区：[1]香港中文大学物理系 [2]北京航空航天大学流体力学研究所,北京100083

出　　处：《力学进展》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

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.

关 键 词：湍流 实验研究 湍流对流 硬湍流 大尺度 研究 

分 类 号：O357.5[理学—流体力学]