Key research themes
1. What are the microphysical processes and instabilities governing collisionless shock wave formation, dynamics, and particle acceleration in astrophysical plasmas?
This research area investigates electromagnetic processes mediating collisionless shocks in space and astrophysical environments, focusing on how micro-instabilities, magnetic field amplification, and particle energization develop at multiple spatiotemporal scales. It matters due to the ubiquity of collisionless shocks in magnetospheres, supernova remnants, gamma-ray bursts, and galaxy clusters, and their fundamental role in producing cosmic rays and high-energy non-thermal radiation.
2. How do shock wave/boundary layer interactions (SWBLI) produce low-frequency unsteadiness and what mechanisms govern its dynamics in transonic and supersonic flows?
This research theme focuses on the characterization, origin, and control of unsteady shock wave behavior induced by interactions with turbulent or laminar boundary layers in aerodynamic flows. Low-frequency shock oscillations and separation bubble breathing crucially affect drag, structural fatigue, and aerodynamic performance in transonic aircraft and propulsion systems. Understanding the instability mechanisms, frequency content, and forcing-responses enables better modeling and control strategies for these flows.
3. What experimental and modeling approaches advance understanding of the propagation, attenuation, and control of shock waves in engineered systems and media?
This theme covers experimental design, measurement innovations, and modeling frameworks for shock waves in laboratory and applied contexts, such as shock tubes, blast wave mitigation in foams, underwater wire explosions, and energy scaling laws. It is important for creating reproducible, artifact-free shock wave conditions relevant in biomedical studies, industrial safety, and fundamental fluid and plasma physics, enabling quantitative linkage between shock properties and effects.
