Structure and dynamics of highly turbulent premixed combustion

AM Steinberg, PE Hamlington, X Zhao - Progress in Energy and …, 2021 - Elsevier
Turbulent premixed combustion involves simultaneous and mutually interacting fluid,
chemical, and transport phenomena spanning a wide range of spatial and temporal scales …

Multiscale modeling and general theory of non-equilibrium plasma-assisted ignition and combustion

S Yang, S Nagaraja, W Sun… - Journal of Physics D …, 2017 - iopscience.iop.org
A self-consistent framework for modeling and simulations of plasma-assisted ignition and
combustion is established. In this framework, a'frozen electric field'modeling approach is …

Learning stiff chemical kinetics using extended deep neural operators

S Goswami, AD Jagtap, H Babaee, BT Susi… - Computer Methods in …, 2024 - Elsevier
We utilize neural operators to learn the solution propagator for challenging systems of
differential equations that are representative of stiff chemical kinetics. Specifically, we apply …

Performance of a rotating detonation rocket engine with various convergent nozzles and chamber lengths

JW Bennewitz, BR Bigler, MC Ross, SA Danczyk… - Energies, 2021 - mdpi.com
A rotating detonation rocket engine (RDRE) with various convergent nozzles and chamber
lengths is investigated. Three hundred hot-fire tests are performed using methane and …

Descending modal transition dynamics in a large eddy simulation of a rotating detonation rocket engine

A Batista, MC Ross, C Lietz, WA Hargus Jr - Energies, 2021 - mdpi.com
Rotating detonation rocket engines (RDREs) exhibit various unsteady phenomena,
including modal transitions, that significantly affect their operation, performance and stability …

A systematic approach to high-fidelity modeling and efficient simulation of supercritical fluid mixing and combustion

X Wang, H Huo, U Unnikrishnan, V Yang - Combustion and Flame, 2018 - Elsevier
Advances in fluid-flow modeling and simulation techniques over the past two decades have
improved understanding of the intricate flow physics and combustion dynamics in the …

Subgrid scale modeling of the equation of state for turbulent flows under supercritical conditions

U Unnikrishnan, X Wang, S Yang, V Yang - 53rd AIAA/SAE/ASEE Joint …, 2017 - arc.aiaa.org
Liquid rocket engines (LREs) are traditionally operated in the high pressure, supercritical
regime to produce higher thrust and gain better efficiency, while reducing the size and …

Flow acceleration in an RDRE with gradual chamber constriction

M Ross, J Burr, Y Desai, A Batista, C Lietz - Shock Waves, 2023 - Springer
Rotating detonation propulsion technologies have the potential to create highly efficient
engines in a small form factor. However, the detonation dynamics and complex flowfields …

A hybrid flamelet finite-rate chemistry approach for efficient LES with a transported FDF

M Rieth, JY Chen, S Menon, AM Kempf - Combustion and Flame, 2019 - Elsevier
A hybrid method combining flamelet tabulation with transported filtered density function
(FDF) finite rate chemistry has been developed and applied to large eddy simulation (LES) …

Comparison of flamelet/progress-variable and finite-rate chemistry LES models in a preconditioning scheme

S Yang, X Wang, V Yang, W Sun, H Huo - 55th AIAA Aerospace …, 2017 - arc.aiaa.org
I. Introduction ue to the increasing combustion-based energy demand and its environmental
concerns, high-fidelity simulation of turbulent combustion becomes highly important. For any …