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physics.flu-dyn2026
On the role of grazing atmospheric particles in hypersonic boundary-layer receptivity
Sean Dungan, Christoph Brehm
The role of small atmospheric particulates in the initiation of the laminar-turbulent transition is investigated for the HIFLIER vehicle during Mach 6 ascent condition. High-fideli…
physics.flu-dyn2026
Phonon-mediated stabilization of first and second modes in hypersonic boundary-layer flows
Christoph Brehm, Connor W. Klauss, Mahmoud I. Hussein
Laminar-to-turbulent transition delay is a key challenge in hypersonic boundary-layer flows. Unstable disturbances-most prominently the first and second modes-trigger the onset of…
physics.flu-dyn2026
Distributed Roughness-Induced Transition on a Blunt Body at Mach 6: a Numerical Investigation
Sean Dungan, Mateus Braga, Robyn Macdonald +1
Surface roughness significantly impacts transition to turbulence, especially over high-speed, blunt geometries where surface ablation is necessary to mitigate heat loads during atm…