Coupled interaction between acoustics and unsteady flame dynamics during the transition to thermoacoustic instability in a multi-element rocket combustor
Rocket engine combustors are prone to transverse instabilities that are characterized by
large amplitude high frequency oscillations in the acoustic pressure and the heat release …
large amplitude high frequency oscillations in the acoustic pressure and the heat release …
Thermoacoustic instability in a sequential combustor: Large eddy simulation and experiments
This paper presents a large eddy simulation (LES) of a generic sequential combustor that
was operated at atmospheric pressure and that features a thermoacoustic instability at 145 …
was operated at atmospheric pressure and that features a thermoacoustic instability at 145 …
Formation mechanism of high-frequency combustion oscillations in a model rocket engine combustor
S Shima, K Nakamura, H Gotoda, Y Ohmichi… - Physics of …, 2021 - pubs.aip.org
We study the formation mechanism of high-frequency combustion oscillations in a model
rocket combustor from the viewpoints of symbolic dynamics and complex networks. The flow …
rocket combustor from the viewpoints of symbolic dynamics and complex networks. The flow …
[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 …
featuring a large optical access (255× 38 mm) for flame imaging. Within these tests the …
Measurements of self-excited instabilities and nitrogen oxides emissions in a multi-element lean-premixed hydrogen/methane/air flame ensemble
Understanding the distinguishing physical properties of multi-element lean-premixed high
hydrogen content flames is expected to be integral to the development of carbon-neutral …
hydrogen content flames is expected to be integral to the development of carbon-neutral …
Flame characteristics and response of a high-pressure LOX/CNG rocket combustor with large optical access
Hot-fire tests were performed with a single-injector research combustor featuring a large
optical access (255× 38 mm) for flame imaging. These tests were conducted with the …
optical access (255× 38 mm) for flame imaging. These tests were conducted with the …
Experimental and numerical investigation of transverse combustion instability in a rectangle multi-injector rocket combustor
Y Ren, K Guo, S Feng, Y Tong, W Lin, W Nie - Acta Astronautica, 2023 - Elsevier
Rocket engines are prone to suffer from transverse combustion instabilities, manifesting as
periodic oscillations in pressure and heat release rate. Self-excited transverse instabilities in …
periodic oscillations in pressure and heat release rate. Self-excited transverse instabilities in …
Analysis of self-excited transverse combustion instability in a rectangular model rocket combustor
K Guo, Y Ren, Y Tong, W Lin, W Nie - Physics of Fluids, 2022 - pubs.aip.org
A methane/oxygen mixture is considered to be an appropriate propellant for many future
rocket engines due to its practicality and low cost. To better understand the combustion …
rocket engines due to its practicality and low cost. To better understand the combustion …
Combustion dynamics of annular systems
New results on the dynamics of annular combustors during ignition and combustion
instabilities will be reviewed. Ignition dynamics is considered first by examining experiments …
instabilities will be reviewed. Ignition dynamics is considered first by examining experiments …
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 …