3 papers
physics.flu-dyn2026
A model for pulsation in high-speed double cone flow
Subhajit Das, Subrahmanyam Duvvuri
Periodic large-scale shock-wave unsteadiness over a canonical double cone, termed in literature as "pulsation," is experimentally studied at Mach 6. The general double cone geometr…
physics.flu-dyn2024
An aeroacoustic mechanism to explain universal behavior in hypersonic wake flow oscillations
Premika S. Thasu, Gaurav Kumar, Subrahmanyam Duvvuri
Recent experimental studies reveal that the near-wake region of a circular cylinder at hypersonic Mach numbers exhibits self-sustained flow oscillations. The oscillation frequency…
physics.flu-dyn2024
A model for frequency scaling of flow oscillations in high-speed double cones
Gaurav Kumar, Vaisakh Sasidharan, Akshaya G. Kumara +1
Coherent small-amplitude unsteadiness of the shock wave and the separation region over a canonical double cone flow, termed in literature as oscillation-type unsteadiness, is exper…