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 …

Three-dimensional numerical simulations of a liquid rp-2/o2 based rotating detonation engine

S Prakash, R Bielawski, V Raman, K Ahmed… - Combustion and …, 2024 - Elsevier
Rotating detonation engines (RDEs) offer increased thermal efficiencies and continuous
thrust in a compact design. While non-premixed RDEs, where fuel and oxidizer are injected …

A data-driven reduced-order model for stiff chemical kinetics using dynamics-informed training

V Vijayarangan, HA Uranakara, S Barwey, RM Galassi… - Energy and AI, 2024 - Elsevier
A data-based reduced-order model (ROM) is developed to accelerate the time integration of
stiff chemically reacting systems by effectively removing the stiffness arising from a wide …

Interaction of chemical reactions and turbulence in a jet in supersonic crossflow

S Sharma, J Singh, L Angelilli, V Raman - Proceedings of the Combustion …, 2024 - Elsevier
A sonic hydrogen jet issuing into a high-temperature Mach 2.48 crossflow is studied in order
to assess the interaction between chemical reactions and turbulence in high-speed …

Self-excited wave stabilization in a linear detonation combustor

M Ullman, S Prakash, D Jackson, V Raman… - Combustion and …, 2023 - Elsevier
Detonative combustors, such as rotating detonation engines, have increasingly been viewed
as next-generation propulsion and power generation systems because they offer higher …

Positivity-preserving and entropy-bounded discontinuous Galerkin method for the chemically reacting, compressible Euler equations. Part I: The one-dimensional …

EJ Ching, RF Johnson, AD Kercher - Journal of Computational Physics, 2024 - Elsevier
In this paper, we develop a fully conservative, positivity-preserving, and entropy-bounded
discontinuous Galerkin scheme for simulating the multicomponent, chemically reacting …

[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 …

An integrated framework for accelerating reactive flow simulation using GPU and machine learning models

R Mao, M Zhang, Y Wang, H Li, J Xu, X Dong… - Proceedings of the …, 2024 - Elsevier
Recent progress in machine learning (ML) and high-performance computing (HPC) have
brought potentially game-changing opportunities in accelerating reactive flow simulations. In …

[PDF][PDF] A Comprehensive Review of Flamelet Methods: Future Directions and Emerging Challenges

MN Nejaamtheen, JY Choi - Energies, 2024 - researchgate.net
Understanding and accurately modeling combustion processes in engines across a wide
range of operating conditions is critical for advancing both subsonic and supersonic …

[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 …