An AMReX-based Compressible Reacting Flow Solver for High-speed Reacting Flows relevant to Hypersonic Propulsion

S Sharma, R Bielawski, O Gibson, S Zhang… - arxiv preprint arxiv …, 2024 - arxiv.org
This work presents a comprehensive framework for the efficient implementation of finite-
volume-based reacting flow solvers, specifically tailored for high speed propulsion …

[HTML][HTML] Influence of injector configuration on secondary wave formation and propagation in a rotating detonation combustor

M Ullman, V Raman - Applications in Energy and Combustion Science, 2024 - Elsevier
Numerous studies of rotating detonation engines (RDEs) have noted the appearance of
weaker secondary waves which travel with or counter to the primary wave system. These …

[HTML][HTML] Spatiotemporal information propagation in confined supersonic reacting flows

M Ullman, GS Lee, J Lim, T Lee, V Raman - Applications in Energy and …, 2025 - Elsevier
The interplay between mass injection, heat release, and boundary layer development plays
a key role in dictating the dynamics and stability of confined supersonic flows. The relative …

Accelerating CFD Simulations With Super-Resolution Feedback-Informed Adaptive Mesh Refinement

V Sharma, AH Rauch, V Raman - AIAA SCITECH 2025 Forum, 2025 - arc.aiaa.org
The integration of machine learning (ML) models into computational fluid dynamics (CFD)
solvers represents a novel frontier to accelerate simulation times and increase …

Flame Stabilization in an Axisymmetric Scramjet Combustor Flowpath

R Jain, MJ Ullman, V Raman - AIAA SCITECH 2025 Forum, 2025 - arc.aiaa.org
The stabilization of scramjet combustors involves the complex interplay of shock structures,
turbulence, near-wall flow separation, and chemical reactions. Due to the short time scales …

Spatially-Resolved In-Situ Characterization of a Supersonic Combustor Using fs/ps CARS

AJ Metro, O Petito, A Gargiulo, R Rockwell… - AIAA SCITECH 2025 …, 2025 - arc.aiaa.org
Temperature and qualitative C2H4/N2 concentration measurements using hybrid
femtosecond/picosecond coherent anti-Stokes Raman scattering (fs/ps CARS) are …