Results 31 to 40 of about 21,455 (208)
Conditional moment closure modelling of soot formation in turbulent, non-premixed methane and propane flames [PDF]
Presented are results obtained from the incorporation of a semi-empirical soot model into a first-order conditional moment closure (CMC) approach to modelling turbulent, non-premixed methane–air and propane–air flames.
Fairweather, M. +2 more
core +1 more source
Simulation of hydrogen auto-ignition in a turbulent co-flow of heated air with LES and CMC approach [PDF]
Large-Eddy Simulations (LES) with the first order Conditional Moment Closure (CMC) approach of a nitrogen-diluted hydrogen jet, igniting in a turbulent co-flowing hot air stream, are discussed. A detailed mechanism (nine species, 19 reactions) is used to
Lacor, Chris +4 more
core +1 more source
Effect of CO2 Dilution on the Structure and Emissions from Turbulent, Non-premixed Methane-Air Jet Flames [PDF]
This investigation gives a comparison of the variation of temperature and gas compositions in lifted, turbulent non-premixed methane–air jet flames firing vertically into still air with different carbon dioxide diluent concentrations in the fuel jet. The
Erete, JI +5 more
core +1 more source
Formation of Turbulent Eddies in Jet Diifusion Flames.
The transition from laminar to turbulent modes of an ethylene jet flame was investigated using two-dimensional instantaneous photography of turbulent eddies, by means of a laser-light sheeting method. Observations were made for the eddies around the break point in the fuel flow and the flame. The results show that in the laminar region the fuel flow is
Makoto IKEGAMI +3 more
openaire +3 more sources
Simulation of turbulent flames using detailed chemical mechanisms is still a challenge in numerical combustion due to the large number of species and the stiffness of the system of governing equations.
F. C. Minuzzi, Ch. Yu, U. Maas
doaj +1 more source
Flame spray pyrolysis (FSP) is a technique for the synthesis of metal oxide nanoparticles by combusting precursor solutions in a spray flame. The combustion of certain precursor solutions is known to lead to severe droplet disruptions (μ-explosions) in ...
M.F.B. Stodt, J. Kiefer, U. Fritsching
doaj +1 more source
Theoretical Analysis of Nitric Oxide Production in a Methane/Air Turbulent Diffusion Flame [PDF]
The coherent flame model is applied to the methane-air turbulent diffusion flame with the objective of describing the production of nitric oxide. The example of a circular jet of methane discharging into a stationary air atmosphere is used to illustrate ...
Marble, Frank E.
core
Rayleigh scattering temperature measurements in a swirl stabilized burner [PDF]
Rayleigh scattering temperature measurements were obtained in a turbulent reactive swirling coaxial jet discharged from a swirl-stabilized burner along the jet-flame centerline.
Hardalupas, Y. +3 more
core
Background-oriented Schlieren tomography (BOST) is widely used for 3D reconstruction of turbulent flames. Two major concerns are associated with 3D reconstruction. One is the time asynchrony within the data acquisition of the high-speed camera. The other
Peng Gao +5 more
doaj +1 more source
This numerical study investigates the combustion modes in the second stage of a sequential combustor at atmospheric and high pressure. The sequential burner (SB) features a mixing section with fuel injection into a hot vitiated crossflow.
Noiray, Nicolas, Schulz, Oliver
core +1 more source

