Results 61 to 70 of about 32,275 (199)

Burning Rate in Impinging Jet Flames

Journal of Combustion, 2011
A method for evaluating burning velocity in premixed turbulent flames stabilized in divergent mean flows is quantitatively validated using numerical approximations of measured axial profiles of the mean combustion progress variable, mean and conditioned ...
A. N. Lipatnikov
doaj   +1 more source

General Correlations of Iso-octane Turbulent Burning Velocities Relevant to Spark Ignition Engines

Energies, 2019
A better understanding of turbulent premixed flame propagation is the key for improving the efficiency of fuel consumption and reducing the emissions of spark ignition gasoline engines.
Minh Tien Nguyen, Dewei Yu, Chunyen Chen, Shenqyang (Steven) Shy   +3 more
doaj   +1 more source

Bulk Burning Rate in Passive - Reactive Diffusion

, 1999
We consider a passive scalar that is advected by a prescribed mean zero divergence-free velocity field, diffuses, and reacts according to a KPP-type nonlinear reaction.
Constantin, Peter, Kiselev, Alexander, Oberman, Adam, Ryzhik, Leonid   +3 more
core   +2 more sources

Evolution and the period-luminosity relation for red supergiants in the Magellanic Clouds [PDF]

, 2013
Excitation of radial pulsations in red supergiants of Magellanic Clouds is investigated using the stellar evolution calculations and the self-consistent solution of the equations of radiation hydrodynamics and turbulent convection. The stars with initial
Fadeyev, Yuri A.
core   +1 more source

Turbulent partially cracked ammonia/air premixed spherical flames

Fuel Communications
The combustion of ammonia requires, for most energy conversion systems, a combustion promoter such as hydrogen to guarantee the start-up, stability and combustion efficiency.
S. Zitouni, P. Bréquigny, C. Mounaïm-Rousselle   +2 more
doaj   +1 more source

Impact of planetary boundary layer turbulence on model climate and tracer transport [PDF]

Atmospheric Chemistry and Physics, 2015
Planetary boundary layer (PBL) processes are important for weather, climate, and tracer transport and concentration. One measure of the strength of these processes is the PBL depth.
E. L. McGrath-Spangler, A. Molod, L. E. Ott, S. Pawson   +3 more
doaj   +1 more source

Type Ia Supernova Explosion Models [PDF]

, 2000
Because calibrated light curves of Type Ia supernovae have become a major tool to determine the local expansion rate of the Universe and also its geometrical structure, considerable attention has been given to models of these events over the past couple ...
Aldering G, Arnett WD, Beer A, Blinnikov SI, Blinnikov SI, Buchler JR, Buchler JR, Bychkov VV, Cappellaro E, Chandrasekhar S, Damköhler G, Darrieus G, Garcia-Senz D, Greiner J, Hoeflich P, Homeier D, Imshennik VS, Imshennik VS, Ivanova LN, Kercek A, Khokhlov AM, Khokhlov AM, Khokhlov AM, King AR, Kolmogorov AN, Landau LD, Landau LD, Lewis B, Lucy LB, Lundmark K, Lundmark K, Mair G, Mazzali PA, Mazzali PA, Mihalas D, Mochkovitch R, Mochkovitch R, Müller E, Niemeyer JC, Nomoto K, Nomoto K, Paczynski B, Paczynski B, Pakull MW, Pauldrach AWA, Pskovskii IP, Reinecke M, Reinecke M, Saio H, Schoenfelder V, Shigeyama T, Thielemann FK, Tripp R, Van den Heuvel EPJ, Wellstein S, Williams FA, Zeldovich YB   +56 more
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A Study on Modeling of Turbulent Burning Velocity Based on Local Burning Velocity for Hydrogen Mixtures

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 2008
This study is made to attempt to establish a prediction model of tubulent burning velocity for hydrogen mixtures based on the local burning velocity of turbulent flames instead of laminar burning velocity. The turbulent burning velocity characteristics of the specific mixtures having the same laminar burning velocity SL0 with different equivalence ...
Masaya NAKAHARA, Hiroyuki KIDO
openaire   +2 more sources

Schlieren Image Velocimetry and colorimetry for a burning candle and its thermal plume [PDF]

INCAS Bulletin
This article explores the feasibility of generating velocity maps for a flame and its plume from a burning candle using Schlieren Image Velocimetry (SIV). Currently, SIV is predominantly employed in the literature to track highly turbulent flows by using
Raluca Andreea ROSU
doaj   +1 more source

Numerical study of acoustic oscillations and combustion instabilities in solid propellant rocket [PDF]

, 1997
A numerical analysis of unsteady motions in solid rocket motors has been conducted. A fully coupled implicit scheme based on a dual time-stepping integration algorithm has been adopted to solve the governing equations and associated boundary conditions.
Culick, F. E. C., Roh, T. S.
core