Results 81 to 90 of about 71,012 (210)

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

Ignition Delay Times of Kerosene (Jet-A)/Air Mixtures

, 2014
Ignition of Jet-A/air mixtures was studied behind reflected shock waves. Heating of shock tube at temperature of 150 C was used to prepare a homogeneous fuel mixture. Ignition delay times were measured from OH emission at 309 nm and from absorption of He-
Andrey Yu. Starikovskiy, Chaos, Dagaut, Dean, Edwards, Gueret, Kumar, Li, Petersen, Petersen, Pfahl, Starikovskiy, Vargaftik, Vasu, Victor P. Zhukov, Vladislav A. Sechenov, Wang, Zhukov, Zhukov, Zhukov, Zhukov, Zhukov, Zhukov   +22 more
core   +1 more source

Quantitative mapping mechanism between thermo-flow coupled characteristics and cutting performance of oxygen-propane cutting nozzles

Case Studies in Thermal Engineering
The present study is founded upon the theoretical framework of isentropic flow, and it puts forward a structural enhancement, of the Laval type, for the oxygen channel of a commercial straight-tube oxygen-propane cutting nozzle.
Haonan Yu, Bin Xiong, Yueze Han, Zhijun Hu, Chenglong Guo, Xin Liu, Zhixin Wang, Zunce Wang   +7 more
doaj   +1 more source

An evaluation of the relative fire hazards of jet A and jet B for commercial flight [PDF]

The relative fire hazards of Jet A and Jet B aircraft fuels are evaluated. The evaluation is based on a consideration of the presence of and/or the generation of flammable mixtures in fuel systems, the ignition characteristics, and the flame propagation ...
Hacker, P. T., Hibbard, R. R.
core   +1 more source

Numerical and Experimental Study on Jet Flame Behavior and Smoke Pattern Characteristics of 50 Ah NCM Lithium-Ion Battery Thermal Runaway

Batteries
This paper investigates the flame behavior and smoke pattern characteristics of lithium-ion battery (LIB) fires using an integrated experimental and numerical simulation approach.
Xuehui Wang, Zilin Fan, Zhuo’er Sun, Xin Fu, Mingyu Jin, Yang Shen, Shu Lin, Zhi Wang   +7 more
doaj   +1 more source

Large Eddy Simulation (LES) of Hydrogen Jet Flames and Finite Element Analysis of Thermal Barrier Coating

Fluids
A jet flame occurs when the release of flammable gas or liquid ignites, resulting in a long, intense, and highly directional flame. This type of fire is commonly associated with industrial incidents involving pipelines, storage tanks, and other ...
Alon Davidy
doaj   +1 more source

Effect of momentum flow ratio on entrainment of a confined coaxial jet in a co-flow

Engineering Applications of Computational Fluid Mechanics
Iron ore pellet production processes produce large amounts of CO2 emissions when burning fossil fuels. One example is the grate-kiln process, where normally a coal flame is used to indurate pellets.
N. Martin Östman, I. A. Sofia Larsson, T. Staffan Lundström, Daniel Marjavaara, Fredrik Normann   +4 more
doaj   +1 more source

An investigation of air solubility in Jet A fuel at high pressures [PDF]

Problems concerned with the supercritical injection concept are discussed. Supercritical injection involves dissolving air into a fuel prior to injection.
Faeth, G. M.
core   +1 more source

An SMLD joint PDF model for turbulent non-premixed combustion using the flamelet progress-variable approach

, 2015
This paper provides an improved flamelet/progress variable (FPV) model for the simulation of turbulent combustion, employing the statistically most likely distribution (SMLD) approach for the joint probability density function (PDF) of the mixture ...
Coclite, Alessandro, Cutrone, Luigi, De Palma, Pietro, Ihme, Matthias, Pascazio, Giuseppe   +4 more
core   +1 more source

Jet flames from noncircular burners

Sadhana, 1997
Gas jets from noncircular exits entrain more air from surroundings than jets from circular exits of equivalent area. Because the mixing rate of fuel and air governs the combustion and pollutant emission of diffusion flames and partially premixed flames, noncircular geometries offer a passive control of the flame characteristics.
openaire   +2 more sources