SECONDARY　INSTABILITY　WITH　RESPECT　TO　SPATIAL　GROWING　THREE－DIMENSIONAL　SUBHARMONIC　DISTURBANCES　IN　BOUNDARY　LAYER　FLOW　WITH　SUCTION  

作　　者：Zhao, Gengfu 

机构地区：[1] Tianjin Univ, Tianjin, China

出　　处：《Journal of Hydrodynamics》1995年第3期7-12,共6页水动力学研究与进展B辑（英文版）

摘　　要：In the paper secondary instability theory is used to analyse the effect of suctions on the characteristics of spatially growing 3-D subharmonic disturbances in boundary layer flow. The end results indicate that increasing suctions can delay the onset of primary and secondary instability, decrease the amplification factors, shows an apparent laminar flow control on the boundary layer flows. The secondary instability of 3D subharmonic disturbances occurs only if the amplitude of TS wave exceeds the threshold value.In the paper secondary instability theory is used to analyse the effect of suctions on the characteristics of spatially growing 3-D subharmonic disturbances in boundary layer flow. The end results indicate that increasing suctions can delay the onset of primary and secondary instability, decrease the amplification factors, shows an apparent laminar flow control on the boundary layer flows. The secondary instability of 3D subharmonic disturbances occurs only if the amplitude of TS wave exceeds the threshold value.

关 键 词：boundary layer SUCTION secondary instability 

分 类 号：O357.4[理学—流体力学]