Results 101 to 110 of about 119,191 (210)

Response characteristics of methane–air and propane–air premixed flames to sinusoidal oscillations in equivalence ratio (Effects of Lewis number and preferential diffusion)

Journal of Thermal Science and Technology
Flames propagate in mixture flows with inhomogeneous concentration distributions in practical combustors, such as gasoline direct-injection engines and gas turbine engines. Clarifying the effect of fuel-type differences on the response characteristics of
Yosuke SUENAGA, Hideki YANAOKA, Shohei SEO, Komei NIWATA   +3 more
doaj   +1 more source

Forced and natural convection in laminar-jet diffusion flames [PDF]

An experimental investigation was conducted on methane, laminar-jet, diffusion flames with coaxial, forced-air flow to examine flame shapes in zero-gravity and in situations where buoyancy aids (normal-gravity flames) or hinders (inverted-gravity flames)
Haggard, J. B., Jr.
core   +1 more source

Evidence on the formation of dimers of polycyclic aromatic hydrocarbons in a laminar diffusion flame. [PDF]

Commun Chem, 2020
Faccinetto A, Irimiea C, Minutolo P, Commodo M, D'Anna A, Nuns N, Carpentier Y, Pirim C, Desgroux P, Focsa C, Mercier X.   +10 more
europepmc   +1 more source

The Effect of Changing Exhaust Nozzle Geometry on Temperature Distribution and Emissions of Methane Diffusion Flame Under Air/Fuel Swirl Flows

Energies
The performance of diffusion flame (DF) burners strongly depends on how effectively combustion gases mix and retain heat, yet the influence of exhaust nozzle geometry on these processes remains insufficiently characterized.
Salim Al Hamdani, Abdullah Al-Janabi, Sulaiman Al-Obidani, Ali Al-Hinaai, Ahmed Elwardany   +4 more
doaj   +1 more source

Role of acoustics in flame/vortex interactions [PDF]

The role of acoustics in flame/vortex interactions is examined via asymptotic analysis and numerical simulation. The model consists of a one-step, irreversible Arrhenius reaction between initially unmixed species occupying adjacent half-planes which are ...
Hussaini, M. Y., Jackson, T. L., Macaraeg, Michele G.   +2 more
core   +1 more source

Effects of H₂ Addition on Flammability Dynamics and Extinction Physics of Dimethyl Ether in Laminar Spherical Diffusion Flame. [PDF]

ACS Omega, 2020
Zhang P, Kang Y, Huang X, Peng S, Cui K, Lu X.   +5 more
europepmc   +1 more source

An Experimental and Theoretical Study of Radiative Extinction of Diffusion Flames [PDF]

In a recent paper on 'Observations of candle flames under various atmospheres in microgravity' by Ross et al., it was found that for the same atmosphere, the burning rate per unit wick surface area and the flame temperature were considerably reduced in ...
Agrawal, Sanjay, Atreya, Arvind, Guenther, Mark, Ray, Anjan, Wichman, Indrek   +4 more
core   +1 more source

Stability of a premixed flame in stagnation-point flow against general disturbances [PDF]

Previously, the stability of a premixed flame in a stagnation flow was discussed for a restricted class of disturbances that are self-similar to the basic undisturbed flow; thus, flame fronts with corrugations only in the cross stream direction were ...
Jackson, Thomas L., Matalon, Moshe
core   +1 more source

Diffusion Flame Stabilization [PDF]

Diffusion flames are commonly used for industrial burners in furnaces and flares. Oxygen/fuel burners are usually diffusion burners, primarily for safety reasons, to prevent flashback and explosion in a potentially dangerous system.
Katta, Viswanath R., Takahashi, Fumiaki
core   +2 more sources

Effects of Buoyancy on Laminar, Transitional, and Turbulent Gas Jet Diffusion Flames [PDF]

Gas jet diffusion flames have been a subject of research for many years. However, a better understanding of the physical and chemical phenomena occurring in these flames is still needed, and, while the effects of gravity on the burning process have been ...
Bahadori, M. Yousef, Edelman, Raymond B., Stocker, Dennis P., Vaughan, David F., Zhou, Liming   +4 more
core   +1 more source