Coupling between hydrodynamics, acoustics, and heat release in a self-excited unstable combustor

ME Harvazinski, C Huang, V Sankaran, TW Feldman… - Physics of …, 2015 - pubs.aip.org
The unsteady gas dynamic field in a closed combustor is determined by the nonlinear
interactions between chamber acoustics, hydrodynamics, and turbulent combustion that can …

Flame dynamics during combustion instability in a high-pressure, shear-coaxial injector combustor

S Srinivasan, R Ranjan, S Menon - Flow, Turbulence and Combustion, 2015 - Springer
We present a large-eddy simulation based investigation of combustion instability in the
Continuous Variable Resonance Combustor (CVRC); a high-pressure, shear-coaxial …

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 …

Large-Eddy Simulation of Supercritical Combustion: Model Validation Against Gaseous Injector

H Huo, V Yang - Journal of Propulsion and Power, 2017 - arc.aiaa.org
Supercritical combustion has attracted significant interest due to its applications in high-
pressure combustion devices. Validation of supercritical combustion modeling, however …

[HTML][HTML] Flame characteristics of a high-pressure LOX/H2 rocket combustor with large optical access

J Martin, W Armbruster, R Stützer, S General… - Case Studies in Thermal …, 2021 - Elsevier
Hot fire tests were performed with a newly developed single-injector research combustor
featuring a large optical access (255× 38 mm) for flame imaging. Within these tests the …

Time-resolved flow field and thermal loads in a single-element GOx/GCH4 rocket combustor

J Zips, C Traxinger, M Pfitzner - International Journal of Heat and Mass …, 2019 - Elsevier
Abstract This work presents Large Eddy Simulations of a single-element GOx-GCH 4
combustion chamber at elevated pressure. A robust and efficient flamelet model accounting …

Detonation wave collision study during rotating detonation rocket engine counter-propagating modes

A Batista, BR Bigler, M Ross, C Lietz… - AIAA Propulsion and …, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-3659. vid The rotating detonation
rocket engine (RDRE) is a pressure gain combustion device that exhibits multiple modes of …

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 …

[HTML][HTML] Investigation and assessment of production-and dissipation-limited DDES methods for rocket combustion chamber simulations

T Seitz, P Gerlinger - Computers & Fluids, 2024 - Elsevier
This paper compares two different delayed detached-eddy simulation (DDES) techniques,
namely iDDES and l 2-ω-DDES. Their performance is investigated with and without …