Results 11 to 20 of about 5,570 (259)

Experimental Measurement of Local Burning Velocity Within a Rotating Flow [PDF]

open access: yesFlow, Turbulence and Combustion, 2011
The work presented in this paper details the implementation of a new technique for the measurement of local burning velocity using asynchronous particle image velocimetry. This technique uses the local flow velocity ahead of the flame front to measure the movement of the flame by the surrounding fluid.
Edward Long, Graham K Hargrave
exaly   +4 more sources

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   +4 more sources

DNS analysis on the correlation between local burning velocity and flame displacement speed of turbulent premixed flames

open access: yesJournal of Thermal Science and Technology
The local burning velocity and flame displacement speed are the major properties of premixed flames. The local burning velocity, which is the instantaneous quantity based on the local consumption rate of the unburnt mixture, is considered to be the most ...
Kazuya TSUBOI
doaj   +4 more sources

Effect of Stretch on Local Burning Velocity of Premixed Turbulent Flames

open access: yesJournal of Thermal Science and Technology, 2007
The effect of positive stretch on the local flame properties of turbulent propagating flames in the flamelet regime was investigated experimentally for methane-, hydrogen- and propane-air mixtures with lean and rich having nearly the same laminar burning
Masaya NAKAHARA   +3 more
doaj   +5 more sources

Modelling of turbulent hydrogen-blended premixed flames using algebraic flame surface wrinkling closure for the Lewis numbers and mean local burning velocity [PDF]

open access: yesAlexandria Engineering Journal, 2022
Hydrogen-blended fuel is of fundamental interest due to difficulties in modelling and its practical significance for the development of high-performance hydrogen combustion devices and safety technologies for the prediction and prevention of fire or ...
Siva PR Muppala
doaj   +3 more sources

Evaluation of the Local Burning Velocity Using DNS Data of Turbulent Premixed Flames

open access: yesNatural Science, 2014
The local burning velocity, which is based on the consumption rate of the unburned mixture, is one of the dominant parameters in turbulent premixed flames. In this study, the evaluating method of the local burning velocity was investigated using DNS data of turbulent premixed flames with different Lewis numbers.
Kazuya Tsuboi   +2 more
exaly   +4 more sources

DNS Analysis on the Indirect Relationship between the Local Burning Velocity and the Flame Displacement Speed of Turbulent Premixed Flames [PDF]

open access: yesOpen Journal of Fluid Dynamics, 2014
The local burning velocity and the flame displacement speed are the dominant properties in the mechanism of turbulent premixed combustion. The flame displacement speed and the local burning velocity have been investigated separately, because the flame displacement speed can be used for the discussion of flame-turbulence interactions and the local ...
Kazuya Tsuboi, Eiji Tomita
exaly   +4 more sources

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   +4 more sources

An experimental study on promotion of burning velocity of powder-gas hybrid combustion in a stagnation-point flow

open access: yesNihon Kikai Gakkai ronbunshu
An experimental study was made on burning velocity in powder-gas hybrid combustion in order to investigate the determination factor to alter the burning velocity caused by the addition of power in the premixed gas.
Haruya YATA   +4 more
doaj   +2 more sources

B131 A Modeling of Turbulent Burning Velocity for Hydrogen Mixtures based on Local Burning Velocity

open access: yesThe Proceedings of the Thermal Engineering Conference, 2005
Masaya Nakahara, Hiroyuki Kido
exaly   +3 more sources

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