Results 111 to 120 of about 21,588 (239)

Numerical investigation of high-pressure combustion in rocket engines using Flamelet/Progress-variable models

, 2014
The present paper deals with the numerical study of high pressure LOx/H2 or LOx/hydrocarbon combustion for propulsion systems. The present research effort is driven by the continued interest in achieving low cost, reliable access to space and more ...
Coclite A., Cutrone L., Gamal E., Jachimowski J., Marinov N., Meeks E., Prausnitz D., Reid R., Thomas J., Vingert L.   +9 more
core   +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

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

Experimental studies of glass refining [PDF]

The basic components of the experimental apparatus were selected and acquired. Techniques were developed for the fabrication of the special crucibles necessary for the experiments.
Cole, R., Kondos, P., Subramanian, R. S.
core   +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

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

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 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

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

Analysis of extinction in a non-premixed turbulent flame using large eddy simulation and the chemical explosion mode analysis [PDF]

, 2015
Dodoulas, IA, Navarro-Martinez, S
core   +1 more source