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 …
Advances in modeling supercritical fluid behavior and combustion in high-pressure propulsion systems
JC Oefelein - AIAA scitech 2019 forum, 2019 - arc.aiaa.org
Modeling and simulation of injection, mixing, and combustion of liquid fuels or oxidizers at
supercritical pressures involves many complications beyond the challenges that already …
supercritical pressures involves many complications beyond the challenges that already …
Large-Eddy Simulation of Liquid Injection and Combustion Processes in High-Pressure Systems
JC Oefelein, G Lacaze - 2020 - arc.aiaa.org
Because operating pressures of many modern combustion systems approach or exceed the
thermodynamic critical pressure of the working fluids, developing the requisite scientific …
thermodynamic critical pressure of the working fluids, developing the requisite scientific …
Heterogeneous detonation physics as applied to high pressure rotating detonation engines
J Humble, SD Heister - AIAA Scitech 2021 Forum, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-1027. vid Rotating detonation
rocket engines (RDRE) have garnered increased attention in the aerospace propulsion …
rocket engines (RDRE) have garnered increased attention in the aerospace propulsion …
Large-eddy simulation of cryogenic jet injection at supercritical pressures
The operating pressure of modern high-performance liquid rocket engines (LREs) lies well
above the critical pressure pc of the propellants oxygen (pc, O2 ¼ 5.043 MPa) and hydrogen …
above the critical pressure pc of the propellants oxygen (pc, O2 ¼ 5.043 MPa) and hydrogen …
Forced and unforced shear coaxial mixing and combustion at subcritical and supercritical pressures
DJ Forliti, IA Leyva, DG Talley, JI Rodriguez… - 2020 - arc.aiaa.org
Combustion stability has been a pervasive issue for propulsion devices. Combustion in a
confined environment may exhibit a feedback-loop phenomenon referred to as a …
confined environment may exhibit a feedback-loop phenomenon referred to as a …
Molecular simulations to research supercritical fuel properties
Practical engines such as liquid rockets and diesel and gas turbine engines all operate at
high pressures. For example, the chamber pressure of one of the most powerful liquid-fueled …
high pressures. For example, the chamber pressure of one of the most powerful liquid-fueled …
Measurement of heat transfer in liquid rocket combustors
M Oschwald, D Suslov, J Haemisch, O Haidn… - 2020 - arc.aiaa.org
Typical hot-gas temperatures in liquid propellant rocket engines are around 3500 K. At
constant combustion-chamber geometry the heat-transfer coefficients at the combustion …
constant combustion-chamber geometry the heat-transfer coefficients at the combustion …
Chirped-Probe-Pulse Femtosecond CARS H2 Thermometry in a High-Pressure Model Rocket Combustor
View Video Presentation: https://doi. org/10.2514/6.2023-1931. vid Chirp-probe-pulse
femtosecond CARS (CPP fs CARS) temperature measurements of H2 molecules inside a …
femtosecond CARS (CPP fs CARS) temperature measurements of H2 molecules inside a …
Detailed measurement of oxidizer-rich staged combustion injector dynamics in model rocket combustors
MJ Bedard, RM Gejji, WE Anderson, BL Austin Jr… - AIAA Journal, 2022 - arc.aiaa.org
This paper presents experimental results from a model rocket combustor that uses a gas-
centered swirl-coaxial injector element injecting warm oxygen and ambient temperature RP …
centered swirl-coaxial injector element injecting warm oxygen and ambient temperature RP …