2 papers
physics.flu-dyn2023
Optimal two-dimensional roughness for transition delay in high-speed boundary layer
Reza Jahanbakhshi, Tamer A. Zaki
The influence of surface roughness on transition to turbulence in a Mach 4.5 boundary layer is studied using direct numerical simulations. Transition is initiated by the nonlinearl…
physics.flu-dyn2018
Nonlinearly most unstable route to high-speed boundary-layer turbulence
Reza Jahanbakhshi, Tamer A. Zaki
Laminar-to-turbulence transition in zero-pressure-gradient boundary layer at Mach 4.5 is studied using direct numerical simulations. For a given level of total disturbance energy,…