Experimental investigation of combustion dynamics and NOx/CO emissions from densely distributed lean-premixed multinozzle CH4/C3H8/H2/air flames
Lean-premixed fuel-flexible combustion technology capable of operating on a wide range of
fuels, including high or pure hydrogen, is expected to play a crucial role in reducing nitrogen …
fuels, including high or pure hydrogen, is expected to play a crucial role in reducing nitrogen …
Impact of shear-coaxial injector hydrodynamics on high-frequency combustion instabilities in a representative cryogenic rocket engine
W Armbruster, J Hardi… - International Journal of …, 2022 - journals.sagepub.com
The excitation mechanism of a thermoacoustic instability in a 42-element research rocket
thrust chamber with representative operating conditions with respect to European cryogenic …
thrust chamber with representative operating conditions with respect to European cryogenic …
[HTML][HTML] The Rayleigh integral is always positive in steadily operated combustors
The Rayleigh index has been used for decades by a large number of researchers as an
indicator to determine if a flame is driving or damping thermoacoustic interaction …
indicator to determine if a flame is driving or damping thermoacoustic interaction …
Hopf bifurcation analysis of the combustion instability in a liquid rocket engine
X Liang, L Yang, G Wang, J Li - Aerospace, 2022 - mdpi.com
The bifurcation process of self-sustained combustion instability pressure perturbations in a
liquid rocket combustor is investigated based on the Helmholtz equations and a pressure …
liquid rocket combustor is investigated based on the Helmholtz equations and a pressure …
[HTML][HTML] Investigation into the coherence of flame intensity oscillations in a model multi-element rocket combustor using complex networks
Capturing the complex spatiotemporal flame dynamics inside a rocket combustor is
essential to validate high-fidelity simulations for developing high-performance rocket …
essential to validate high-fidelity simulations for developing high-performance rocket …
Large eddy simulation of effects of oxidizer inlet temperatures on the transition routes before and after thermoacoustic instability in a subcritical hydrogen peroxide …
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 the intermittency routes that exist before
and after the occurrence of thermoacoustic instability in a subcritical single-element liquid …
and after the occurrence of thermoacoustic instability in a subcritical single-element liquid …
Reconstruction of the flame nonlinear response using deep learning algorithms
This paper demonstrates the ability of the neural network trained on frequency-sweeping
signals with different amplitudes to reconstruct the flame nonlinear response. The neural …
signals with different amplitudes to reconstruct the flame nonlinear response. The neural …
Complex-network analysis of high-frequency combustion instability in a model single-element rocket engine combustor
We study the spatio-temporal dynamics of high-frequency combustion instability in a model
single-element rocket combustor using an acoustic energy flux-based spatial network. The …
single-element rocket combustor using an acoustic energy flux-based spatial network. The …
Simulation of Multi-Injector H2-O2 Rocket Combustion Instability
Large-eddy simulation is applied to compute the combustion instabilities in an experimental
42-injector hydrogen-oxygen (H2-O2) rocket engine. The unsteady, compressible, multi …
42-injector hydrogen-oxygen (H2-O2) rocket engine. The unsteady, compressible, multi …
Interaction of acoustic pressure and heat release rate fluctuations in a model rocket engine combustor
We experimentally clarify the interaction of acoustic pressure and heat release rate
fluctuations during a transition to high-frequency combustion instability in a model rocket …
fluctuations during a transition to high-frequency combustion instability in a model rocket …