Robyn L. Macdonald

collaborators

2 papers

physics.flu-dyn2026

Influence of wall thermal boundary condition on mean-flow characteristics of a Mach 2.5 fully rough turbulent boundary layer

Mateus A. R. Braga, Robyn L. Macdonald

We investigate turbulent boundary layers at Mach 2.5 over sinusoidal roughness at matched $R e_{τ} = 784$ . We considered three wall temperatures, $T_{w} / T_{r} =$ 1.0, 0.7, and 0.4. Each wall…

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…