Results 11 to 20 of about 6,888,109 (208)

Burning velocity and the influence of flame stretch [PDF]

open access: yes, 1991
A new technique is presented for determining burning velocities and stretch effects in laminar flames, and applied to a range of fuel/air mixtures. The speeds of expanding spherical flames, measured by high-speed schlieren cine-photography, are shown to
Taylor, Simon Crispin
core   +6 more sources

Turbulent flame development in a high-pressure combustion vessel [PDF]

open access: yes, 2005
The objective of this work was to extend the range of turbulent burning velocities presented in the literature by performing new measurements at elevated pressures over a range of turbulent velocities, u' (r. m. s. deviation from the mean velocity).
Ormsby, Matthew P, Ormsby, Matthew P.
core   +7 more sources

Burning velocity of premixed turbulent flames in the weakly wrinkled regime [PDF]

open access: yes, 2005
PhDTurbulent burning velocities have been measured for methane/air and ethylene/air planar flames stabilised in a wide-angled conical diffuser where the flow is decelerated axially.
Savarianandam, Vivek Ross
core   +4 more sources

Experimental and theoretical studies of combustion rates at high pressure [PDF]

open access: yes, 2004
The thesis reports experimental and theoretical studies of premixed combustion rates at high pressure and temperature. It focuses on measurements of laminar and turbulent burning velocities at high pressures and temperatures approaching those in engines,
AI-Shahrany, Ali Saied
core   +7 more sources

Fundamental studies of premixed combustion [PDF]

open access: yes, 1998
The thesis comprises a fundamental study of spherical premixed flame propagation,originating at a point under both laminar and turbulent propagation.
Haq, Md Zahurul
core   +6 more sources

An Analysis of Local Quantities of Turbulent Premixed Flames Using DNS Databases

open access: yesJournal of Thermal Science and Technology, 2008
A numerical analysis was performed using DNS (Direct Numerical Simulation) databases of statistically steady and fully developed turbulent premixed flames with different density ratios and with different Lewis numbers.
Kazuya TSUBOI   +2 more
doaj   +1 more source

Experimental assessment of the impact of variation in jet fuel properties on spray flame liftoff height

open access: yesApplications in Energy and Combustion Science, 2021
Ensuring efficient and clean combustion performance of liquid-fueled engines requires comprehension of the influence of fuel composition and properties on flame behavior, such as flame liftoff height (LOH) and lean blowout limit (LBO).
Radi Alsulami   +4 more
doaj   +1 more source

Experimental Study on Local Flame Properties of Hydrogen Added Hydrocarbon Premixed Turbulent Flames

open access: yesJournal of Thermal Science and Technology, 2009
This experimental study is performed to investigate directly the local flame properties of turbulent propagating flames at the same weak turbulence condition (u'/SL0=1.4), in order to clarify basically the influence of the addition of hydrogen to ...
Masaya NAKAHARA   +2 more
doaj   +1 more source

Fluid-mechanical structure of methane-air and propane-air turbulent premixed flames

open access: yesNihon Kikai Gakkai ronbunshu, 2015
The flow fields of lean and rich propane-air and methane-air turbulent premixed flames of the identical conditions of laminar burning velocity and characteristic of turbulence have been closely examined by using a three-color six-beam LDV system.
Yasuko YOSHIDA   +2 more
doaj   +1 more source

Validation of a new level set approach in the counter flow premixed flame

open access: yesJournal of Thermal Science and Technology, 2014
The flamelet model based on the concept of local flame speed S*is newly developed to describe a premixed flame with a finite thickness when defining G as the non-dimensional temperature.
Yingjie LIU, Nobuyuki OSHIMA
doaj   +1 more source

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