Results 21 to 30 of about 2,170 (163)

Linear Instability Analysis of Lean Premixed Combustion

Journal of Thermal Science and Technology, 2012
Combustion oscillation of a self excited combustion-acoustic phenomenon occurs inside the gas turbine combustor. In general, excessive pressure fluctuation of combustion oscillation may impair the gas turbine engine operation and may result in hardware ...
Kazufumi IKEDA, Keisuke MATSUYAMA, Mitsunori ISONO, Masaharu NISHIMURA   +3 more
doaj   +1 more source

Study on Combustion Oscillation of Premixed Flame with Pilot Fuel at Elevated Pressures

Journal of Thermal Science and Technology, 2009
Acoustically-coupled combustion oscillation is studied for premixed flame with pilot fuel to be used in gas turbine combustors. Premixed gas is passed through swirl vanes and burnt with the centrally injected pilot fuel.
Masaya OHTSUKA, Shohei YOSHIDA, Yoshitaka HIRATA, Nariyoshi KOBAYASHI   +3 more
doaj   +1 more source

Study on Suppression of Combustion Instability using Quarter Wavelength Tube [PDF]

Journal of Applied Fluid Mechanics, 2022
The passive suppression of combustion instability by quarter wavelength tube was hereby studied to absorb the oscillation pressure with large amplitudes caused by combustion instability.
C. Liu, H. Zhong, J. Jin, Y. Liu, Z. Tian, Y. Yan   +5 more
doaj   +1 more source

Combustion Driven Oscillation

Journal of the Fuel Society of Japan, 1971
The combustion in propulsion engines or industrial furnaces is never perfectly smooth and is usually accompanied with random fluctuations in the combustion rate as well as in pressure and velocity. When the pressure fluctuation becomes in phase with the fluctuation in the heat release rate of combustion, the fluctuation will develop into the organized ...
openaire   +3 more sources

Numerical Study of Knocking Combustion in a Heavy-Duty Engine under Plateau Conditions

Energies, 2022
Diesel engine combustion becomes very rough and can lead even lead to deflagration under high altitude conditions, which is harmful to component durability.
Haiying Li, Xiaoqin Zhang, Chaofan Li, Rulou Cao, Weiqing Zhu, Yaozong Li, Fengchun Liu, Yufeng Li   +7 more
doaj   +1 more source

Experimental Study on Flame Response Characteristics of a Non-Premixed Swirl Model Combustor

Energies, 2023
Non-premixed swirl combustion has been widely used in pieces of industrial combustion equipment such as industrial boilers, furnaces, and certain specific gas turbine combustors.
Chen Yang, Yong Liu, Xiang Zhang, Hao Li, Xinkun Ge, Feng Jin, Chongyang Liu   +6 more
doaj   +1 more source

Supersonic Combustion Mode Analysis of a Cavity Based Scramjet

Aerospace, 2022
Since flame stability is the key to the performance of scramjets, scramjet combustion mode and instability characteristics were investigated by using the POD method based on a cavity-stabilized scramjet. Experiments were developed on a directly connected
Yu Meng, Wenming Sun, Hongbin Gu, Fang Chen, Ruixu Zhou   +4 more
doaj   +1 more source

Experimental Study of Influence of Secondary Combustion on Combustion Characteristics of Axial Staged Combustor

Shanghai Jiaotong Daxue xuebao
In order to obtain the influencing rule of secondary combustion on emissions and combustion oscillation characteristics of gas turbine axial staged combustor in non-premixed combustion mode and explore a load increasing mode with stable low emission, an ...
SUI Yongfeng, ZHANG Yuming, ZANG Peng, JIA Yuliang, HENG Sijiang, FU Yanni, GE Bing
doaj   +1 more source

Effects of LOX Particle Diameter on Combustion Characteristics of a Gas-Liquid Pintle Rocket Engine

International Journal of Aerospace Engineering, 2020
LOX/GCH4 pintle injector is suitable for variable-thrust liquid rocket engines. In order to provide a reference for the later design and experiments, three-dimensional numerical simulations with the Euler-Lagrange method were performed to study the ...
Xuan Jin, Chibing Shen, Rui Zhou, Xinxin Fang   +3 more
doaj   +1 more source

Oscillating flames in micro-combustion

Combustion and Flame, 2016
New experimental results that demonstrate the existence of oscillating flames in micro-combustion are reported here. The results showed the presence of oscillating regimes with different behaviors in the transition between the stable flames, FREI (Flame with Repetitive Extinction and Ignition), and weak flames.
Di Stazio, Annalisa, Chauveau, Christian, Dayma, Guillaume, Dagaut, Philippe   +3 more
openaire   +3 more sources