Results 51 to 60 of about 32,275 (199)

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

Journal 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   +1 more source

The effects of unburned-gas temperature on the characteristics of cellular premixed flames generated by hydrodynamic and diffusive-thermal instabilities in large space: fractal dimension of cellular-flame fronts

Journal of Thermal Science and Technology, 2017
The effects of unburned-gas temperature on the characteristics of cellular premixed flames generated by hydrodynamic and diffusive-thermal instabilities were numerically investigated.
Satoshi KADOWAKI, Taisuke WASHIO, Thwe Thwe Aung, Wataru YAMAZAKI, Toshiyuki KATSUMI, Hideaki KOBAYASHI   +5 more
doaj   +1 more source

Type Ia Supernova: Burning and Detonation in the Distributed Regime

, 2007
A simple, semi-analytic representation is developed for nuclear burning in Type Ia supernovae in the special case where turbulent eddies completely disrupt the flame. The speed and width of the ``distributed'' flame front are derived.
Damkohler G., Ropke F., S. E. Woosley
core   +1 more source

Turbulent Convection in Stellar Interiors. II. The Velocity Field

, 2008
We analyze stellar convection with the aid of 3D hydrodynamic simulations, introducing the turbulent cascade into our theoretical analysis. We devise closures of the Reynolds-decomposed mean field equations by simple physical modeling of the simulations (
Arnett, Asida, Balbus, Batchelor, Bethe, Biermann, Boris, Brandenburg, Browning, Browning, Böhm-Vitense, Böhm-Vitense, Campbell, Casey Meakin, Chandrasekhar, Chandrasekhar, Charbonnel, Clayton, Cvitanović, David Arnett, Dutton, Frisch, Gill, Gleick, Hansen, Heger, Howe, Kippenhahn, Kolmogorov, Kritsuk, Landau, Ludwig, Meakin, Meakin, Meakin, Meynet, Nordlund, Oran, Patrick A. Young, Porter, Porter, Shannon, Stone, Sytine, Tassoul, Tennekes, Thompson, Timmes, Trampedach, Tritton, Turner, Vitense, Woodward, Woodward, Young, Zel'dovich   +55 more
core   +1 more source

Magnetic Fields Produced by Phase Transition Bubbles in the Electroweak Phase Transition [PDF]

, 1995
The electroweak phase transition, if proceeding through nucleation and growth of bubbles, should generate large scale turbulent flow, which in turn generates magnetic turbulence and hence magnetic fields on the scale of turbulent flow.
A.D. Linde, B. Cheng, B. Liu, C. J. Hogan, D.A. Kirzhnits, Dietrich Bödeker, E. M. Lifshitz, E. N. Parker, G. Baym, G. W. Anderson, Gordon Baym, J. M. Quashnock, L. D. Landau, Larry McLerran, M. Dine, M. E. Carrington, M. S. Turner, N. Turok, P. Huet, T. Vachaspati   +19 more
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Experiments and a correlation of turbulent burning velocities.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1985
層流燃焼速度SLは同じで,層流火炎の反応域厚さが互いに異なる混合気について乱流燃焼実験を行った.その結果,反応域厚さδは乱流燃焼速度STに大きく影響し,SLー定で同じ乱れ強さu'ではδが薄いものほどST/SLが大きいことが明らかになった.次に(ST一.SL)/u'で定義された乱れ強さの有効度は,整理に用いた本論文と他のいくつかの実験結果について,反応域厚さと乱れの平均空間尺度の比が増すにつれて減少することが示された.
Hiroyuki KIDO, Yutaro WAKURI, Kenshiro NAKASHIMA   +2 more
openaire   +1 more source

IMPACT OF THE NOZZLE ANGLE, DISTANCE BETWEEN BURNERS, AND N2 ON BURNING VELOCITY OF THE DIFFUSOIN COUNTER FLAMES

Journal of Engineering and Sustainable Development, 2020
The achievement of precise measurements on the laminar diffusion flames plays a big role in the process of realizing a wide flames range. Despite most of fuel is likely burnt in the turbulent combustion, there is still data requirement for the data on ...
Salwa Tariq Omar, Fouad Alwan Saleh, Jassim Mohammad Abdulkarim   +2 more
doaj  

Mathematical Modeling of Turbulent Gas Flames and Assessment of Environmental Indicators of Modern Gas Burning Devices

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2003
The paper reveals the procedure of calculation of velocity fields, flame temperature and changes in concentration of the components of combustion products on the basis of time and length of a turbulent flame of gas-burning devices. This method is used to
K. V. Dobrego, S. A. Zhdanok, V. I. Timoshpolsky, I. M. Kozlov, V. A. Tishchenko, I. V. Kotov   +5 more
doaj   +1 more source

Properties of Deflagration Fronts and Models for Type Ia Supernovae [PDF]

, 1999
Detailed models of the explosion of a white dwarf, which include self-consistent calculations of the light curve and spectra, provide a link between observational quantities and the underlying explosion.These calculations assume spherical geometry and ...
Bravo E., Hillebrandt W., Hoflich P., I. Dominguez, Khokhlov A., Khokhlov A., Nomoto K., P. Hoflich, van den Heuvel E. P. J.   +8 more
core   +3 more sources

Effect of Inert Gas on Turbulent Burning Velocities.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1999
In our previous works, the preferential diffusion effect was found to play an important role in premixed turbulent combustion characteristics, where nitrogen was added as an inert gas to several fuel/oxygen mixtures. In this study, the inert gas is changed to Ar, He and CO2, and the relationship between the turbulent burning velocity and the diffusion ...
Hiroyuki KIDO, Jun HASHIMOTO, Dilmurat BARAT, Masashi NISHIGAKI, Hideki OKAMOTO   +4 more
openaire   +3 more sources