A new method of predicting boundary layer transition is presented which models the near wall velocity fluctuations induced in the laminar layer through pressure fluctuations associated with the freestream turbulence. These near wall velocity fluctuations are then assumed to develop into turbulent sport when their amplitude exceeds a threshold value. A relationship for the near wall velocity frequency spectra is also established, which indicates an increasing bias towards low frequencies as the skin friction co- efficient for the boundary layer decreases.
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