Results 171 to 180 of about 34,664 (208)

Pressure Oscillations During Rapid HCCI Combustion

SAE Technical Paper Series, 2003
<div class="htmlview paragraph">This work has focused on studying the in-cylinder pressure fluctuations caused by rapid HCCI combustion and determine what they consist of. Inhomogeneous autoignition sets up pressure waves traversing the combustion chamber. These pressure waves induce high gas velocities which causes increased heat transfer to the
Andreas Vressner, Andreas Lundin, Magnus Christensen, Per Tunestål, Bengt Johansson   +4 more
openaire   +1 more source

Oscillations in a combustible gas bubble

Combustion Theory and Modelling, 1998
The dynamical behaviour of an isolated combustible gas bubble surrounded by unlimited inviscid liquid is analysed in the case of large activation energy and using spatially uniform assumptions. The pressure effect is crucial in this problem because of the limited gas volume.
V. Gol'dshtein, I. Goldfarb, I. Shreiber, A. Zinoviev   +3 more
openaire   +1 more source

Active Feedback Control of Combustion Oscillations

4th International Symposium on Fluid-Structure Interactions, Aeroelasticity, Flow-Induced Vibration and Noise: Volume II, 1997
Abstract Combustion oscillations are excited by a feedback mechanism which results from the coupling between the flame instability and an acoustic resonance mode of the combustion chamber. The most important event of this mechanism is believed to be the upstream feedback from the acoustic resonance to the initial region of the flame ...
Samir Ziada, Hans R. Graf
openaire   +1 more source

An intriguing oscillating combustion phenomenon

2012
Strobes are pyrotechnic compositions that emit bright flashes of white or colored light at regular time intervals. The strobe effect has applications in various fields, most notably in the fireworks industry and in the military area (signaling – missile decoys – crowd control).
Corbel, J.M.L., Lingen, J.N.J., Zevenbergen, J.F., Gijzeman, O.L.J., Meijerink, A.   +4 more
openaire   +1 more source

Modeling and Control of Combustion Oscillations

Volume 2: Turbo Expo 2005, 2005
Clean combustion, with low levels of pollutants, can be achieved by burning lean and premixed. Unfortunately, these are just the conditions that cause self-excited oscillations which can become so intense that they break the combustor. Many gas-fuelled power stations have suffered damage in this way and been unable to achieve their designed power and ...
openaire   +1 more source

Combustion, Oscillations and Plumes

AIAA International Air and Space Symposium and Exposition: The Next 100 Years, 2003
James Whitelaw, Peter Lindstedt, Dr. Ersel Korusoy, Mr. Tek Seang Kuan   +3 more
openaire   +1 more source

The relaxation oscillation in ramjet combustion

Symposium (International) on Combustion, 1981
A mechanism of low frequency relaxation oscillation in ram jet combustion is proposed. Initial pressure disturbances induce combustion instability which results in periodic heat release. Acting as feedback, the periodic heat release boosts the pressure pulsations.
openaire   +1 more source

Combustion oscillation characteristics of a supersonic ethylene jet flame using high-speed planar laser-induced fluorescence and dynamic mode decomposition

Energy, 2022
Xin Yu, Fei Qin
exaly  

Combustion Oscillations in Ducted Burners

Industrial & Engineering Chemistry, 1955
John C. Truman, Roger T. Newton
openaire   +1 more source

Active control of combustion oscillation with active disturbance rejection control (ADRC) method

Journal of Sound and Vibration, 2022
Hong Zhi Zhu
exaly