Abstract Space–time scale-resolved diagnostic and computational campaigns routinely
produce high-fidelity multi-disciplinary truth-model quality datasets for complex …

Large-eddy simulation data for a Mach 1.3 round jet are decomposed into acoustic,
hydrodynamic and thermal components using Doak's momentum potential theory. The …

This study clarifies the fundamental mechanism by which porous coatings suppress the
supersonic mode instability in the hypersonic boundary layer (BL) by using Doak's …

Discrete unstable modes of hypersonic laminar boundary layers, obtained from an
eigenvalue analysis, provide insight into key transition scenarios. The character of such …

We investigate by direct numerical simulation the active control of laminar-turbulent
transition in a hypersonic flat-plate boundary layer at a freestream Mach number of 5.86. The …

Fluid–acoustic interactions are important in a variety of applications and typically result in
adverse effects. We analyze the influence of Mach number on such interactions and their …

We examine the three-dimensional energy-exchange mechanisms between stochastic
turbulence and an organized radiating wavepacket, and subsequent scattering and …

The acoustic, vortical, and entropic (thermal) components of the second-mode instability,
regarded as an asymptotic behavior of the free-stream counterparts, were found to interact …

The natural transition of hypersonic boundary layers (HBLs) is often expressed in terms of
discrete modes and their linear stability. A frequent interpretation revolves around fast and …

The exact mechanism by which turbulent fluctuations in jets are converted into acoustic
energy remains unexplained. The current work aims to improve our understanding of this …