Spanwise surface temperature variations generate streaks that suppress up to 60% of second Mack mode energy in hypersonic boundary layers, with optimal wavelength 8-10 times the local boundary layer thickness at Mach 6.
2023 Optimal linear and non-linear solutions in hypersonic boundary layers: stability and open-loop control
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Stabilisation of second Mack mode in hypersonic boundary layers through spanwise non-uniform surface temperature distribution
Spanwise surface temperature variations generate streaks that suppress up to 60% of second Mack mode energy in hypersonic boundary layers, with optimal wavelength 8-10 times the local boundary layer thickness at Mach 6.