Results 1 to 10 of about 45,053 (298)
Some of the next articles are maybe not open access.
High-speed visualization of flame propagation in explosions
Journal of Visualization, 2001Flow visualization data is presented to describe the structure of flames propagating in methane-air explosions in semi-confined enclosures. The role of turbulence is well established as a mechanism for increasing burning velocity by fragmenting the flame front and increasing the surface area of flames propagating in explosions.
G. K. Hargrave +2 more
openaire +1 more source
Diffusion-Controlled Cool Flame Propagation Speeds
44th AIAA Aerospace Sciences Meeting and Exhibit, 2006Cool flames in an equimolar propane-oxygen premixture have been studied at reduced gravity in a closed, unstirred, static, spherical reactor. Acquired visual records were then analyzed and used to determine the cool flame propagation speeds for different vessel temperatures and initial reactant pressures.
Michael Foster, Howard Pearlman
openaire +1 more source
High-speed interferometer system for flame propagation studies
Optics & Laser Technology, 1971Abstract A system comprising a laser interferometer and two high speed cine-cameras has been developed in order to photograph simultaneously in colour the spread of flame among polythene particles suspended in air and the corresponding interferograms of the changes in refractive index.
M. Marchant, J.A. Cobb, R.N. Butlin
openaire +1 more source
The constant-volume propagating spherical flame method for laminar flame speed measurement
Science Bulletin, 2016Laminar flame speed is one of the most important intrinsic properties of a combustible mixture. Due to its importance, different methods have been developed to measure the laminar flame speed. This paper reviews the constant-volume propagating spherical flame method for laminar flame speed measurement.
Mahdi Faghih, Zheng Chen
openaire +1 more source
Local flame propagation speeds along wrinkled, unsteady, stretched premixed flames
Symposium (International) on Combustion, 1998The local displacement speed was measured along a premixed flame that is wrinkled, unsteady, stretched, and freely propagating. The displacement speed is argued to be the most important and sensitive parameter that must be simulated correctly in numerical simulations of turbulent flames.
Jose O. Sinibaldi +2 more
openaire +1 more source
Combustion Science and Technology, 2000
We consider the propagation speed of thin premixed flames disturbed by the fluid flow and suggest a new approach based on using the generalized curvilinear system of coordinates and tenser calculus. The suggested technique is shown to be more simple than the traditional technique used by Sivashinsky (1976), Matalon and Matkowsky (1982) and also in ...
Klimenko, AY, Class, AG
openaire +3 more sources
We consider the propagation speed of thin premixed flames disturbed by the fluid flow and suggest a new approach based on using the generalized curvilinear system of coordinates and tenser calculus. The suggested technique is shown to be more simple than the traditional technique used by Sivashinsky (1976), Matalon and Matkowsky (1982) and also in ...
Klimenko, AY, Class, AG
openaire +3 more sources
Combustion and Flame, 2009
Article history: The effect of nonspherical (i.e. cylindrical) bomb geometry on the evolution of outwardly propagating flames and the determination of laminar flame speeds using the conventional constant-pressure technique is investigated experimentally and theoretically.
Michael P. Burke +3 more
openaire +1 more source
Article history: The effect of nonspherical (i.e. cylindrical) bomb geometry on the evolution of outwardly propagating flames and the determination of laminar flame speeds using the conventional constant-pressure technique is investigated experimentally and theoretically.
Michael P. Burke +3 more
openaire +1 more source
Combustion Theory and Modelling, 2009
The effects of flow compression and flame stretch on the accurate determination of laminar flame speeds at normal and elevated pressures using propagating spherical flames at constant pressure or constant volume are studied theoretically and numerically.
Z. Chen, M. P. Burke, Y. Ju
openaire +1 more source
The effects of flow compression and flame stretch on the accurate determination of laminar flame speeds at normal and elevated pressures using propagating spherical flames at constant pressure or constant volume are studied theoretically and numerically.
Z. Chen, M. P. Burke, Y. Ju
openaire +1 more source
International Journal of Hydrogen Energy, 2011
Abstract Three biomass derived gases (BDGs, named GG-H, GG-L and GG-V), which are derived from industry facilities and can be useful for reducing CO2 and the application to combustors, are studied and examined for some basic flame characteristics such as unstretched laminar burning velocity, Markstein length, and cell formation over the entire flame ...
Tran Manh Vu +4 more
openaire +1 more source
Abstract Three biomass derived gases (BDGs, named GG-H, GG-L and GG-V), which are derived from industry facilities and can be useful for reducing CO2 and the application to combustors, are studied and examined for some basic flame characteristics such as unstretched laminar burning velocity, Markstein length, and cell formation over the entire flame ...
Tran Manh Vu +4 more
openaire +1 more source
Radiation-induced uncertainty in laminar flame speed measured from propagating spherical flames
Combustion and Flame, 2014Laminar flame speeds measured using the propagating spherical flame method are inherently affected by radiation. Under certain conditions, a substantial uncertainty in laminar flame speed measurement is caused by radiation, which results in a great concern for kinetic mechanism validation and development.
Hao Yu +6 more
openaire +1 more source