Results 31 to 40 of about 2,170 (163)

Energy attenuation behavior on propane–air premixed combustion on account of nonmetallic spherical spacers in confined space with two perforated plates

Energy Science & Engineering, 2023
Energy attenuation behavior on propane premixed combustion on account of nonmetallic spherical spacers (NSSs) was investigated in a constant volume combustion bomb with two accelerative perforated plates.
Huwei Dai, Dasuo Yao, Yangyang Yu, Junhong Zhang, Dan Wang   +4 more
doaj   +1 more source

Large-Scale Vortical Motion and Pressure Fluctuation in Noise-Controlled, Swirl-Stabilized Combustor

Journal of Thermal Science and Technology, 2009
To clarify the mechanisms of combustion oscillation, combustion noise and their suppression by secondary fuel injection, simultaneous measurements of stereoscopic particle image velocimetry (SPIV) and pressure fluctuation in combustion chamber were ...
Masayasu SHIMURA, Mamoru TANAHASHI, Gyung-Min CHOI, Toshio MIYAUCHI   +3 more
doaj   +1 more source

Effect of the inner-surface baffles on the tangential acoustic mode in the cylindrical combustor

Open Physics, 2020
The combustion instability in a propulsion system is a ubiquitous problem. The radial baffles usually installed on the injector faceplate eliminate the combustion instability (acoustic pressure oscillation) in the propulsion system.
Duan Runze, Cao Yifan, Duan Hongbin, Tian Liang, Tian Liting, Du Cong, Liu Liansheng, Rong Nan, Li Tiansheng   +8 more
doaj   +1 more source

Characteristics of the flame flashback in a dual-mode scramjet combustor by the gliding arc plasma

Applications in Energy and Combustion Science, 2023
A multi-channel gliding arc (MCGA) plasma with an average power of 6000 W is utilized to control the flame flashback in a dual-mode scramjet combustor with a cavity flameholder.
Rong Feng, Jiajian Zhu, Dongze Li, Zhipeng Meng, Mingbo Sun, Hongbo Wang, Chenglong Wang, Chao Wang, Zhenguo Wang   +8 more
doaj   +1 more source

Effect of the Expansion Ratio on Combustion Oscillations in Solid-Fuel Ramjets: An Experimental and Numerical Study

Aerospace
This study investigates the impact of the expansion ratio on combustion oscillation phenomena and their driving mechanisms in a solid-fuel ramjet (SFRJ) through experimental and numerical simulations.
Luhao Wang, Tao Cai, Xiong Chen, Changsheng Zhou, Weixuan Li   +4 more
doaj   +1 more source

Flame propagation behavior of propane–air premixed combustion in a confined space with two perforated plates at different initial pressures

Energy Science & Engineering, 2022
The aim of this paper is to analyze local autoignition induced by secondary flame acceleration. The secondary flame acceleration process and the local autoignition formation mechanism at the condition of the secondary flame acceleration propagation were ...
Yangyang Yu, Junhong Zhang, Jun Wang, Dan Wang   +3 more
doaj   +1 more source

Analyzing thermal radiation in cylindrical anisotropic scattering medium with element differential method

Xibei Gongye Daxue Xuebao, 2023
The spontaneous radiation combustion diagnosis technology has high requirements for obtaining the radiation intensity of highly directional resolution in a combustion system.
LI Yifan, SUN Yasong, ZHANG Huabo, LI Sida, LIU Changhao, MA Jing   +5 more
doaj   +1 more source

Combustion Characteristics of a Hydrogen-Fueled TJI Engine under Knocking Conditions

Energies
The use of a two-stage combustion system in a hydrogen-fueled engine is characteristic of modern internal combustion engines. The main problem with hydrogen combustion in such systems is knocking combustion.
Ireneusz Pielecha, Filip Szwajca
doaj   +1 more source

Survey of Organ-Pipe Oscillations in Combustion Systems [PDF]

The Journal of the Acoustical Society of America, 1955
Fifty-three references from the open literature dealing with organ-pipe combustion oscillations are reviewed; these oscillations were generated in various types of combustion systems by the flame, or the combustion process. The many systems discussed range from simple singing-flame burners to industrial furnaces and high-duty rockets.
Abbott A. Putnam, William R. Dennis
openaire   +1 more source

Experimental Investigation on Pressure and Flame Surface Oscillation in a Dual-Cavity Scramjet Combustor

Energies
Pressure and flame surface oscillations are common in supersonic combustion instability. Understanding the characteristics, generation, maintenance, and interaction mechanisms of these oscillations is crucial. An experimental setup with an alcohol heater
Wenhao Liao, Yidan Chen, Ningfei Wang
doaj   +1 more source