New Results in a Study of Controlled Transitional Boundary Layers
边界层控制转捩研究的新结果——流场测量和流动显示

Some new results are given in the present paper in a study of controlled transition. Besidesa A-structure;; a set of ring-like vortiees and solitary waves are found to be associated with the forma-tion of the A-structures. The Astructure is considered as part of the butterfly-like structure.