Results 21 to 30 of about 1,095,673 (276)

Flow field and local burning velocity affected by stretch in swirl flow of turbulent premixed flames

open access: yesJournal of Thermal Science and Technology, 2022
In this study, we have investigated turbulent premixed flames affected by local stretch in a swirl flow, measured by the simultaneous OH-PLIF/SPIV system. Evaluating the transient of burning velocity and stretch rate, the flow and the flame dynamics in a
Kazuhiro YAMAMOTO   +2 more
doaj   +1 more source

Effects of local flame displacement velocity on turbulent burning velocity for lean H2-C3H8-Air mixtures

open access: yesNihon Kikai Gakkai ronbunshu, 2015
This study was made to establish a prediction method of turbulent burning velocity for lean hydrogen-propane-air mixtures, with paying special attention to the importance of local burning velocity to turbulent burning velocity.
Masaya NAKAHARA   +4 more
doaj   +1 more source

Laminar burning velocity blending laws using particle imaging velocimetry

open access: yesApplications in Energy and Combustion Science, 2023
One of the most essential inherent characteristics of a combustible mixture is laminar burning velocity. Because of its relevance, many methods for measuring laminar flame velocity have been devised.
Yu Xie   +3 more
doaj   +1 more source

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

Analysis of Turbulent Burning Velocity of Spherically Propagating Premixed Flame with Effective Turbulence Intensity

open access: yesJournal of Thermal Science and Technology, 2012
Burning velocity of spherically propagating turbulent flames kept increasing with flame propagation. On the other hand, turbulent burning velocity obtained from burner stabilized flame is constant for a given turbulence intensity.
Akihiro HAYAKAWA   +3 more
doaj   +1 more source

Propagation Properties of Turbulent Premixed Flames Neutral for Thermo-Diffusive Effects

open access: yesInternational Journal of Automotive Engineering, 2020
Burning velocity is one of the important properties of premixed turbulent flames. Premixed turbulent flames are, in general, subjected to the thermo-diffusive effects in addition to the increase in the flame front area due to the influence of turbulence.
Toshiaki Kitagawa   +4 more
doaj   +1 more source

Development of laminar burning velocity measurement system in premixed flames with hydrogen-content syngas or strong oxidizer conditions in a slot burner

open access: yesCase Studies in Thermal Engineering, 2022
This study presents the experimental determination of laminar burning velocity for critical premixed flames with multiple fuels or strong oxidizers. Experiments were conducted with a slot burner under methane/air, methane/nitrous oxide, and syngas (CH4 ...
Yueh-Heng Li, Jin-Wei Liang, Hung-Ju Lin
doaj   +1 more source

The Role of Hydrogen Bonding on Laminar Burning Velocity of Hydrous and Anhydrous Ethanol Fuel with Small Addition of n-Heptane

open access: yesJournal of Combustion, 2016
The molecular structure of mixed hydrous and anhydrous ethanol with up to 10% v n-heptane had been studied. The burning velocity was examined in a cylindrical explosion combustion chamber. The result showed that the burning velocity of hydrous ethanol is
I Made Suarta   +3 more
doaj   +1 more source

Experimental Determination of Aluminum Burning Velocity During Flame Propagation in a Tube

open access: yesChemical Engineering Transactions, 2020
Modeling the consequences of dust explosions is a challenging research topic. A key parameter of these models is the burning velocity, which represents the consumption rate of the reactants by the flame front.
Clement Chanut   +3 more
doaj   +1 more source

The Effect of Initial Conditions on the Laminar Burning Characteristics of Natural Gas Diluted by CO2

open access: yesEnergies, 2019
The initial conditions such as temperature, pressure and dilution rate can have an effect on the laminar burning velocity of natural gas. It is acknowledged that there is an equivalent effect on the laminar burning velocity between any two initial ...
Zhiqiang Han   +5 more
doaj   +1 more source

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