COLLOQUIUM 672
Shock-turbulence interactions in hypersonic applications

4 May — 6 May 2028, Lecce, Italy

This colloquium addresses recent advances in understanding the physics of shock-wave/turbulence interaction, a phenomenon ubiquitous in high-Reynolds and high-Mach number flows. The colloquium focuses on conditions relevant to hypersonic applications, where strong compressions tighten the coupling between the thermodynamic state of the gas and hydrodynamics, potentially leading to thermo-chemical non-equilibrium driven by turbulence mixing and shock-induced compression.

To provide a comprehensive discussion, the colloquium will be structured around two complementary topics: (1) the interaction of shock waves with homogeneous isotropic turbulence (HIT), and (2) the interaction of shock waves with wall-bounded turbulent boundary layers.

The interaction of HIT will be utilized to explore fundamental aspects of the problem using numerical simulations and theoretical approaches. Topics include, among others, turbulence–thermo-chemistry coupling downstream of the shock, mechanisms responsible for the amplification of turbulence modes across it, and the role of compressibility and non-equilibrium effects. Improving understanding of these processes is essential for developing predictive turbulence models in Reynolds-averaged and large-eddy simulation frameworks.

In wall-bounded configurations, recent advances in quantifying the effects of wall cooling and surface roughness will be discussed, with particular emphasis on their implications for wall modeling. Contributions may also address extensions of current knowledge on three-dimensional shock-wave/boundary-layer interactions, where no statistically coherent spatial directions can be identified. In this context, emphasis is also placed on the role of fluid–structure interaction and conjugate heat transfer effects.

We invite you to submit theoretical, numerical, or experimental contributions concerning these topics.

Chairperson: Mario Di Renzo, Università del Salento, Italy

Co-Chairperson 1: Prof. Christoph Wenzel, University of Stuttgart, Germany

Co-Chairperson 2: César Huete Ruiz de Lira, Universidad Carlos III de Madrid, Spain