Turbulence amplification mechanisms in oblique shock wave/turbulent boundary layer interactions

Study of a system of turbulent shear layers and vortices. Part II: Reynolds-averaged turbulence modelling

Numerical study of turbulence models for Mach 3 shock-wave/corner boundary layer interaction

The shock corner boundary layer interaction at a freestream Mach number of 3 and a ramp angle of 10° was simulated with four turbulence models: RSM, SA, k-ε, and k-ω SST. Their predictions were compared by examining the shock structure in the symmetry plane, the pressure distribution along the corner line, and the boun...

Is k −2 scaling sustained in shock–bubble interaction? A spectral and modal perspective

Shock–bubble interaction constitutes a canonical problem in compressible turbulence, governed by the interplay of compressive and vortical dynamics. Numerical simulations are employed to examine light (He) and heavy (R22) bubbles using dynamic mode decomposition and Favre-weighted turbulent kinetic energy spectra. The...

Shear-free, inhomogeneous turbulence in a stably stratified fluid. Part 2. A wave–turbulence decomposition

Abstract Content of image described in text. In Hass & Lele (2026 J. Fluid Mech. 1037, A20), we looked at the statistical structure (self-similarity) and entrainment rate of a shear-free turbulent layer bounded by a net zero momentum source layer above and a stable density interface below and found agreement with oscil...

Mean flow scaling in stably stratified temporally developing turbulent boundary layers

Stably stratified wall-bounded turbulence governs the dynamics of many environmental and engineering flows. A key challenge is characterizing how stratification modifies mean and turbulent profiles. Monin--Obukhov similarity theory (MOST) is the dominant modelling framework, although it has rarely been rigorously valid...

Direct Numerical Simulation of High-Speed Turbulent Boundary Layers: Current State and Future Challenges

High-speed turbulent boundary layers govern the transport of momentum, mass, and energy in compressible flows and play a central role in determining aerodynamic performance, skin-friction drag, aerodynamic heating, flow stability, and thermal protection requirements of advanced aerospace vehicles. Over the past three d...