New Theories on Boundary Layer Transition and Turbulence Formation

Figure 10

Evolution of vortex structure at the late-stage of transition (Where 𝑇 is the period of 𝑇-𝑆 wave).

(a) 𝑡=6𝑇

(b) 𝑡=6.2𝑇

(c) 𝑡=6.4𝑇

(d) 𝑡=7.0𝑇