%0 Journal Article
%T THREE-DIMENSIONAL STABILITY ANALYSIS OF THEPERIODIC WAKE BEHIND A CIRCULAR CYLINDERBY LOW-DIMENSIONAL GALERKIN METHOD<br>圆柱绕流三维不稳定性的低维Galerkin法分析
%A Ling Guochan
%A Chang Yong
%A <br>凌国灿
%A 常勇
%J 力学学报
%D 1999
%I 
%X Three-dimensional linear instability of flow past a circular cylinder is analyzed bymeans of a low-dimensional Galerkin method and Floquet instability theory. Some improvementson the construction of the azimuthal modes and calculation algorithm in the present analysisare made. The present results show that the ideal two-dimensional periodic flow around thecylinder is unstable with respect to a small spanwise disturbance. It has long-wavelength instabilityand the critical Reynolds number predicted is Re_c =1...
%K three-dimensional stability
%K cylinder wake
%K Galerkin method
%K Floquet stability<br>圆柱绕流
%K 三维
%K 不稳定性
%K Galerkin方法
%K 尾流
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=15A041B8416ED3E0FC6C7DE038C1570F&yid=B914830F5B1D1078&vid=4AD960B5AD2D111A&iid=B31275AF3241DB2D&sid=4A8412AEEC89236B&eid=36C49E1242CC2C7A&journal_id=0459-1879&journal_name=力学学报&referenced_num=0&reference_num=1