Results 211 to 220 of about 44,846 (260)

Flame length of non-buoyant turbulent slot flame

Proceedings of the Combustion Institute, 2019
Wei Gao, Naian Liu, Xisheng Luo
exaly   +2 more sources

Flame Length of Wildland Fires: Effect of Flame Zone Depth

2022
Correlations of flame length L (or height) with the intensity of fires (kW/m2 for area sources or kW/m for line sources) have become foundational to fire behavior science (Byram 1959, Thomas 1963, Nelson and Adkins 1986, among others). Empirical data for these correlations have been based on fires fueled by wood cribs, paper strips, natural gas, and ...
Mark A. Finney, Torben P. Grumstrup
openaire   +1 more source

Length of free diffusion flames

Combustion, Explosion and Shock Waves, 1977
where O~, P~, P a r e t h e g a s d e n s i t y a t t h e n o z z l e mouth , o x i d i z e r d e n s i t y , and c u r r e n t d e n s i t y at an arbitrary point along the flow, respectively; w, wt, current and mean flow rates; F, cross-sectional area of jet (the subscript i refers to the initial section of the jet); g, acceleration of gravity ...
A. L. Suris, E. V. Flankin, S. N. Shorin
openaire   +1 more source

Structure and Flame Length of Fully-Modulated, Turbulent Diffusion Flames

Combustion Science and Technology, 2000
The turbulent flame structure and flame length of fully-modulated diffusion flames was examined over a range of pulsing frequencies, injection flow rates, and duty-cycles. An injection system employing an electronically-controlled solenoid value was used to discharge puffs of unhealed natural gas and ethylene fuel into still air at one atmosphere ...
J.C. HERMANSON, R. DUGNANI, H. JOHARI
openaire   +1 more source

Radiative Fraction and Flame Length of Propane Jet Diffusion Flames in a Crossflow

Физика горения и взрыва, 2020
Many industrial combustion devices rely on jet flame combustion in the crossflow to achieve mixing and reaction. Previous research offers a limited predictive capability regarding the coupling effects of the crossflow and jet flow on the flame radiative fraction.
J.-W. Wang, J. Fang, J.-F. Guan, L.-Y. Zhao, S.-B. Lin, H. R. Shah, Y.-M. Zhang, J.-H. Sun   +7 more
openaire   +2 more sources

Turbulent length scales in a swirling flame

Symposium (International) on Combustion, 1996
LDV measurements of spatial velocity correlations and integral length scales in a swirling jet and a swirling diluted hydrogen flame are described. The experimental setup consists of two conventional laser Doppler anemometers working in forward scattering mode, one fixed and the other moved by a special traversing system.
G. Früchtel, E.P. Hassel, J. Janicka
openaire   +1 more source

Measurements of flame length and flame angle in an inclined trench

Fire Safety Journal, 1992
Abstract Measurements of flame length and flame angle from fire sources mounted in a tiltable trench are reported. The results from three different source configurations are presented and discussed. Empirical correlations between rate of heat release of the fire source and flame length for the experimental configurations have the general form L ∝ Qn.
openaire   +1 more source

Flame lengths under ceilings

Fire and Materials, 1980
AbstractThe evaluation of hazards from developing room fires often requires a knowledge of flame lengths developed by burning objects. Procedures for estimating flame lengths have been available only for vertical plume fires, where there is no flame impingement on the room ceiling.
openaire   +1 more source

Measured lengths of supersonic hydrogen-air jet flames—Compared to subsonic flame lengths—and analysis

Combustion and Flame, 1996
Abstract Measurements of flame length are reported that help to quantify the overall fuel-air mixing process that occurs within a jet-like flame in the supersonic regime. A nonpremixed, turbulent, hydrogen-air jet flame is stabilized along the axis of a Mach 2.2 coflowing air stream.
openaire   +1 more source

On the flame length in firewhirls with strong vorticity

Combustion and Flame, 2013
The influence of strong rotation on the flame length in firewhirls (normalized by the fuel supply rate) is investigated analytically. A new prediction for the length of the flame in firewhirls with strong rotation is obtained by introducing the compensating regime of vortical flows. The prediction is in a good agreement with experimental results.
Klimenko, A. Y., Williams, F. A.
openaire   +4 more sources