Results 21 to 30 of about 3,583 (262)
On the oscillation of combustion of a laminar spray [PDF]
International Journal of Multiphase Flow, 1996 A spray combustor, with flow velocities in the laminar range, exhibits a unique operating mode where large amplitude, self-induced oscillations of the flame shape occur. The phenomenon, not previously encountered, only occurs when fuel is supplied in the form of fine liquid droplets and does not occur when fuel is supplied in gaseous form. Several flow
Yeshayahou Levy, Daniel L. Bulzan
openaire +2 more sources
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 +3 more
doaj +1 more source
Thermoacoustic Instabilities in the Rijke Tube: Experiments and Modeling [PDF]
, 2003 Thermoacoustic instability can appear in thermal devices when unsteady heat release is coupled with pressure perturbations. This effect results in excitation of eigen acoustic modes of the system.
Konstantin Matveev +1 more
core +1 more source
Journal of Spectroscopy, 2019 The present work investigated the flame structures and oscillations of oxy-fuel combustions in a heavy oil boiler using OH planar laser-induced fluorescence imaging.
Xin Yu +8 more
doaj +1 more source
Large Eddy Simulations of gaseous flames in gas turbine combustion chambers [PDF]
, 2012 Recent developments in numerical schemes, turbulent combustion models and the regular increase of computing power allow Large Eddy Simulation (LES) to be applied to real industrial burners.
Staffelbach, Gabriel +2 more
core +1 more source
Acoustic and Large Eddy Simulation studies of azimuthal modes in annular combustion chambers [PDF]
, 2012 The objectives of this paper are the description of azimuthal instability modes found in annular combus- tion chambers using two numerical tools: (1) Large Eddy Simulation (LES) methods and (2) acoustic solv- ers.
Wolf, Pierre +4 more
core +1 more source
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 +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 +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 +5 more
doaj +1 more source
Quantitative Assessment of Flame Stability Through Image Processing and Spectral Analysis [PDF]
, 2015 This paper experimentally investigates two generalized methods, i.e., a simple universal index and oscillation frequency, for the quantitative assessment of flame stability at fossil-fuel-fired furnaces.
Zhou, Hao +4 more
core +1 more source