Large eddy simulation of combustion instability in a subcritical hydrogen peroxide/kerosene liquid rocket engine: Intermittency route to period-2 thermoacoustic …

Y Liu, P Liu, Z Wang, W Ao, Y Guan - Physics of Fluids, 2023 - pubs.aip.org
This paper presents the first numerical evidence of an intermittency route to period-2
thermoacoustic instability in a subcritical singleelement liquid rocket engine burning …

Pressure gradient effect on flame–vortex interaction in lean premixed bluff body stabilized flames

Y Yalcinkaya, AG Gungor - Physics of Fluids, 2023 - pubs.aip.org
This investigation considers the effect of axial pressure gradient on the dynamics of flame–
vortex interaction for a lean premixed bluff body stabilized flame. Large eddy simulations …

[HTML][HTML] Multiplicity for idealized rotational detonation waves

P Zhang, PA Meagher, X Zhao - Physics of Fluids, 2021 - pubs.aip.org
Simulations of three-dimensional rotational detonation waves are conducted to understand
the mechanisms of wave bifurcation. A compressible reacting Euler solver is developed …

Detailed modeling of a small-scale turbulent pool fire

B Wu, SP Roy, X Zhao - Combustion and Flame, 2020 - Elsevier
Turbulent pool fires have been studied as a canonical configuration in fire science with wide
interest. A numerical study of a small-scale turbulent heptane pool fire is conducted in the …

Instability and mode transition analysis of a hydrogen-rich combustion in a model afterburner

S Nakaya, K Omi, T Okamoto, Y Ikeda, C Zhao… - Proceedings of the …, 2021 - Elsevier
Combustion instabilities were investigated experimentally for a hydrogen-rich combustion in
a model afterburner installed at the end of a high-enthalpy wind tunnel. Air was supplied at …

Numerical investigation of combustion instability in a single-element liquid rocket engine: Intermittency routes before and after thermoacoustic instability

Y Liu, P Liu, Z Wang, W Ao, Y Guan - Aerospace Science and Technology, 2023 - Elsevier
This paper provides the first numerical proof of intermittency routes existing before and after
thermoacoustic instability, as we increase the oxidizer inlet temperature under fuel-lean (ϕ …

Experimental investigation of NOx reduction by varying internal flue gas recirculation structures in non-premixed methane combustion

J Cheng, B Liu, T Zhu - Thermal Science and Engineering Progress, 2024 - Elsevier
Internal flue gas recirculation (IFGR) is one of the most effective techniques for eliminating
nitric oxides (NO x) in boilers, however, the NO x reduction principles of varying IFGR …

Large-eddy simulations and mode analysis of ethylene/air combustion in a non-premixed rotating detonation engine

P Pal, C Xu, G Kumar, SA Drennan… - AIAA propulsion and …, 2020 - arc.aiaa.org
Over the last few decades, rotating detonation engines (RDEs) have gained wide attention
for stationary power generation and high-speed propulsion applications, as they offer …

[HTML][HTML] Large eddy simulation of a supersonic lifted hydrogen flame: Impacts of Lewis, turbulent Schmidt and Prandtl numbers

R Zhu, Z Huang, C Xu, X Fang, H Zhang, M Davy - Physics of Fluids, 2024 - pubs.aip.org
Parametric large eddy simulations (LES) of a supersonic lifted hydrogen flame are reported.
The emphases are on two aspects: impacts of (1) Lewis number (Le i of the ith species) and …

Analysis of supersonic shear effects on flame characteristics of an evaporating flame-holder

J Wei, H Zhu, Z Zhu, X He, Z Ren - Aerospace Science and Technology, 2021 - Elsevier
Flame stabilization and its interaction with flow characteristics are crucial to the development
of air-breathing propulsion engine. In this paper, experiments and numerical simulations …