%0 Journal Article
%T On the generation of low-frequency signals in a transitional boundary layer<br>平板边界层转捩过程中低频信号的产生
%A Gong An-Long
%A Li Rui-Qu
%A Li Cun-Bao
%A <br>龚安龙
%A 李睿劬
%A 李存标
%J 物理学报
%D 2002
%I 
%X The fast Fourier transform(FFT) and wavelet transformation were used to process the experimental data in a transitional boundary layer.A low|frequency high|amplitude distribution was observed in the power spectrum.The experimental evidence shows that this distribution is related to the intermittent phenomena in a fluid.Therefore,it responses to an intermittent data structure instead of a real physical one.
%K FFT
%K wavelet
%K boundary layer
%K transition
%K intermittent phenomena<br>边界层
%K 转捩
%K Fourier频谱分析
%K 小波变换
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=2EAB8BA97AB756B2&yid=C3ACC247184A22C1&vid=987EDA49D8A7A635&iid=94C357A881DFC066&sid=305A58D956DD6BAF&eid=CD794621A184DC14&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=7