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Table 2 The boundary layer thickness δ and the wavelength λ of high-frequency pw at probe points in Group 1 (upstream of the transition front) and in Group 2 (downstream of the transition front)

From: Wall pressure beneath a transitional hypersonic boundary layer over an inclined straight circular cone

Group 1 A B C D E F G
δ (mm) 1.03 1.03 1.01 1.00 1.02 1.06 0.98
λ (mm) 2.0 1.85 1.75 1.8 1.77 1.74 1.86
Group 2 A’ B’ C’ D’ E’ F’  
δ (mm) 1.424 1.1 1.27 1.30 1.52 1.71  
λ (mm) 2.43 2.23 2.13 2.05 2.07 2.24