Phase Portraits and Flow Regimes in a Circular Couette System with Counter-Rotating Cylinders  

作　　者：LIU Shusheng SHA Ernan YAO Lan WANG Mingtan 

机构地区：[1]Department of Physics,Tianjin University,Tianjin 300072 [2]Institute of Theoretical Physics,Academia Sinica,Beijing 100080

出　　处：《Chinese Physics Letters》1991年第1期9-12,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China.

摘　　要：Experiments have been conducted on the circular Couette system,established recently in our laboratory.By using an.optical-electronic modulation feedback Laser Doppler Velocimetry technique,the velocity time series data with higher signal-noise ratio,power spectra,phase portraits and Poincare sections were obtained.Two scenarios to chaos were observed.One is the Ruelle-Takens scenario,while the other(when both cylinders of the Couette system are counter-rotating)is quite different from it,A tremendous variety of flow regimes and a new state were observed.A tentative explanation is made for the new state.

关 键 词：STATE COUETTE SYSTEM 

分 类 号：O35[理学—流体力学]