Transition Mode of Two Parallel Flags in Uniform Flow

作     者：WANG Si-Ying DUAN Wen-Gang YIN Xie-Zhen 王思莹;段文刚;尹协振

作者机构：Changjiang River Scientific Research InstituteWuhan 430010 University of Science and Technology of ChinaHefei 230027 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2013年第30卷第11期

页      面：33-36页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 11102027 and 10832010 the Fundamental Research Fund for State Public-Benefic Scientific Institutes of CRSRI under Grant No CKSF2012028/SL 

主　　题：mode phase Transition 

摘      要：The coupled flapping of two side-by-side identical flags in uniform flow is observed experimentally and *** the early reported stable,in-phase,and out-of-phase modes,a transition mode between the in-phase and out-of-phase modes is newly *** different from the other modes,the flapping in this transition mode is no longer a single cycle ***,the FFT analysis of the displacement-time curve indicates that there are multiple peaks of frequency in this mode,of which the smaller value is comparable to the frequency of the in-phase mode and the larger one is close to that of the out-of-phase *** of the weights of different single cycle motions may explain the mode transition.