Results 81 to 90 of about 21,455 (208)

Results of 1/4-Scale Experiments. Vapor Simulant And Liquid Jet A Tests [PDF]

, 2000
A quarter-scale engineering model of the center wing tank (CWT) of a 747-100 was constructed. This engineering model replicated the compartmentalization, passageways, and venting to the atmosphere.
Birky, M. M., Brown, Larry L., Krok, J. Chris, Lee, Julian J., Lynch, Robert T., Samaras, Timothy M., Shepherd, Joseph E.   +6 more
core  

Jet Diffusion Flame Transition to Turbulence [PDF]

The Physics of Fluids, 1987
W. M. Roquemore, L-D. Chen, J. P. Seaba, P. S. Tschen, L. P. Goss, D. D. Trump   +5 more
openaire   +1 more source

Flame Stabilisation Mechanism for Under-Expanded Hydrogen Jets

Fire
A hydrogen under-expanded jet released from a high-pressure vessel or equipment into the atmosphere through a 0.53 mm diameter orifice results in a sustained lifted flame for pressures above 4 MPa and flame blow-out at pressures below 3 MPa. Knowledge of
Keiji Takeno, Hikaru Kido, Hiroki Takeda, Shohei Yamamoto, Volodymyr Shentsov, Dmitriy Makarov, Vladimir Molkov   +6 more
doaj   +1 more source

A study of hydrogen diffusion flames using PDF turbulence model [PDF]

The application of probability density function (pdf) turbulence models is addressed. For the purpose of accurate prediction of turbulent combustion, an algorithm that combines a conventional computational fluid dynamic (CFD) flow solver with the Monte ...
Hsu, Andrew T.
core   +1 more source

Ignition and flame sptead in laminar mixing layers [PDF]

, 1994
In order to identify some of the mathematical problems encoun-tered in analyzing the ignition and ñame spread in mixing layéis, \ve shall describe the structure of the laminar mixing layer between two parallel streams of a fu el and air, initially ...
Liñán Martínez, Amable
core   +1 more source

Experimental and theoretical study of combustion jet ignition [PDF]

A combustion jet ignition system was developed to generate turbulent jets of combustion products containing free radicals and to discharge them as ignition sources into a combustible medium.
Chen, D. Y., Ghoniem, A. F., Oppenheim, A. K.   +2 more
core   +1 more source

Modeling local extinction and differential diffusion in KAUST ammonia flames D and F using principal component transport

Applications in Energy and Combustion Science
Partial cracking of ammonia (NH3) into hydrogen (H2) and nitrogen (N2) enhances flame stability in carbon-free combustion by increasing fuel reactivity. However, modeling turbulent jet flames fueled by such multicomponent mixtures remains challenging due
Suliman Abdelwahid, Mohammad Rafi Malik, Junjun Guo, Hao Tang, Francisco E. Hernández–Pérez, Gaetano Magnotti, Hong G. Im   +6 more
doaj   +1 more source

Experimental Assessment of ‘subgrid’ scale Probability Density Function Models for Large Eddy Simulation [PDF]

, 2012
Filtered density functions (FDFs) of mixture fraction are quantified by analyzing experimental data obtained from two-dimensional planar laser-induced fluorescence scalar measurements in the isothermal swirling flow of a combustor operating at a ...
Hardalupas, Y., Soulopoulos, N., Stetsyuk, V., Taylor, A. M. K. P.   +3 more
core  

Dynamics of regime transition of autoignitive jet flames from conventional to MILD combustion

Applications in Energy and Combustion Science
Turbulent combustion of jet flames in a hot diluted coflow of combustion products has been studied across a range of jet Reynolds numbers for propane, ethylene, and an ethylene-propane blend as fuels.
Aravind Ramachandran, Abinash Sahoo, Venkateswaran Narayanaswamy, Kevin M. Lyons   +3 more
doaj   +1 more source

Laser Raman diagnostics in subsonic and supersonic turbulent jet diffusion flames [PDF]

Ultraviolet (UV) spontaneous vibrational Raman scattering combined with laser-induced predissociative fluorescence (LIPF) is developed for temperature and multi-species concentration measurements.
Cheng, T. S., Pitz, R. W., Wehrmeyer, J. A.   +2 more
core   +1 more source