An improved flamelet/progress variable modeling in a hydrogen-fueled scramjet

T Tang, J Yu, Z Wang, D Yang, M Sun, H Wang… - International Journal of …, 2024 - Elsevier
The compressible nature of the supersonic combustion flow field results in significant
temperature and pressure fluctuations. In the standard Flamelet/Progress Variable (FPV) …

Investigation of ignition and flame propagation in an axisymmetric supersonic combustor with laser-induced plasma

Q Li, J Zhu, Y Tian, M Sun, M Wan, B Yan, T Luo… - Physics of …, 2023 - pubs.aip.org
The ignition and flame propagation in an axisymmetric supersonic combustor were
investigated. The laser-induced plasma was employed to ignite the supersonic inflow with a …

Numerical study on the combustion characteristics and performances of single and multi-injectors in a scramjet combustor

SM Jeong, JE Kim, MS Kim, BK Sung, JY Choi… - Aerospace Science and …, 2024 - Elsevier
The present study numerically investigates the combustion characteristics and performance
of a direct-connect gaseous hydrogen-fueled scramjet combustor depending on the injector …

Detailed simulations on the mixed modes of premixed and diffusion combustion in supersonic hydrogen flames

Z Huang, X Tan, J Ding - Physics of Fluids, 2024 - pubs.aip.org
Combustion in scramjets generally proceeds in diffusion mode due to the independent
injection of fuel and air streams. However, premixed combustion is also important especially …

Numerical study on auto-ignition and combustion characteristics in a supersonic combustor without flame-holder

X Li, Z Wang, J Cao, T Shen, J Du - Aerospace Science and Technology, 2024 - Elsevier
The ignition and stable combustion processes play a crucial role in the operation of a
scramjet engine. This study aims to investigate the effect of fuel reactivity on auto-ignition …

Role of cavity in a Mach 8 axisymmetric scramjet combustor: Flame stabilization vs combustion enhancement

G Ma, G Zhao, M Sun, T Tang, F Li, D Xiong - Physics of Fluids, 2024 - pubs.aip.org
The cavity-assisted scramjet has been proven to be the most promising propulsion system
for air-breathing hypersonic vehicles. In this paper, numerical simulations of a Mach 8 …

Investigation of flow and combustion characteristics in a hydrogen-fueled scramjet combustor

M Yan, Y Tian, L Li, J Le - Journal of the Brazilian Society of Mechanical …, 2024 - Springer
This paper investigates the combustion performance of a scramjet engine in which hydrogen
fuel is injected into the flow field through transverse injectors. An unsteady numerical …

Mixing enhancement of transverse jets in supersonic crossflow using an actively controlled novel fluidic oscillator

S Maikap, AK Rajagopal - Physics of Fluids, 2024 - pubs.aip.org
This study investigates the fluid dynamics and mixing characteristics of an oscillating sonic
jet injected into a supersonic cross flow of Mach 2.1 using experimental and computational …

Mechanisms and characteristics of wall skin friction reduction by boundary layer injection under hypervelocity inflow conditions

Z Qu, X Li, F Luo, Y Long, W Chen - International Journal of Heat and Fluid …, 2024 - Elsevier
In this paper, the influences of boundary layer injection on skin friction reduction are
numerically studied using Reynolds-averaged Navier-Stokes equations. The methodology is …

Research on the flame oscillation characteristics of scramjet combustor equipped with strut fuel injector

F Quan, J Chang, C Lv, C Kong, R Huang - Acta Astronautica, 2024 - Elsevier
The combustor is the core component of the scramjet engine, and stable combustion is the
prerequisite for the efficient operation of the scramjet engine. This paper investigates …