Transient Growth of Perturbation Energy in the Taylor-Couette Problem with Radial Flow  

作　　者：CHEN Cheng GUO Zhi-Wei WANG Bo-Fu SUN De-Jun 陈诚;郭志伟;王伯福;孙德军(Department of Modern Mechanics,University of Science and Technology of China,Hefei 230027)

机构地区：[1]Department of Modern Mechanics,University of Science and Technology of China,Hefei 230027

出　　处：《Chinese Physics Letters》2011年第5期176-179,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 10772172;the 111 Project of China under Grant No B07033.

摘　　要：Transient growth of perturbation energy in the Taylor-Couette problem with radial flow is investigated.The effects of radial flow on transient growth and structure of the optimal perturbation are mainly considered.For the wide gap case,strong radial flow,either inward or outward,shifts the peak of the amplitude of optimal perturbation towards the outer cylinder and the lift-up mechanism cannot be observed.However,for the narrow gap case,the optimal perturbation is almost unaffected by the radial flow and the lift-up mechanism still exists.

关 键 词：PERTURBATION RADIAL flow 

分 类 号：O17[理学—数学]