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湍流猝发的检测方法
引用本文:孙葵花,舒玮.湍流猝发的检测方法[J].力学学报,1994,26(4):488-493.
作者姓名:孙葵花  舒玮
作者单位:天津大学力学系
摘    要:本文对几种常用的检测湍流猝发的条件采样方法,如mu-level法,VITA法,WAG法,(uv)_2法的特点及对门限的敏感性进行了研究.并用不同方法对同一组湍流数字信号进行条件采样和条件平均,针对猝发的特征,对使用不同的条件采样方法以得到一致检测结果的途径进行了探讨.

关 键 词:猝发  湍流  粘性流体力学  边界层

ON THE BURST DETECTION TECHNIQUES IN WALL-TURBULENCE
Sun Kuihua, Shu Wei.ON THE BURST DETECTION TECHNIQUES IN WALL-TURBULENCE[J].chinese journal of theoretical and applied mechanics,1994,26(4):488-493.
Authors:Sun Kuihua  Shu Wei
Abstract:A comparision of the effectiveness and sensitivity of the mu-level, VITA,WAG,(uv)_2 burst-detection algorithms has been done. Measurements were made in a waterchannel using hot-film X-probes located in the near-wall region of a flat plate. Same setof data are used in the study with conditional sampling and conditional averages. Theapproach of acquiring the unique average bursting period are discussed.
Keywords:oherent Structure  Burst  Conditional Sampling  Conditional Average
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