Results 31 to 40 of about 635,474 (345)

An Analysis of Local Quantities of Turbulent Premixed Flames Using DNS Databases

Journal of Thermal Science and Technology, 2008
A numerical analysis was performed using DNS (Direct Numerical Simulation) databases of statistically steady and fully developed turbulent premixed flames with different density ratios and with different Lewis numbers.
Kazuya TSUBOI, Shinnosuke NISHIKI, Tatsuya HASEGAWA   +2 more
doaj   +1 more source

Circle grid fractal plate as a turbulent generator for premixed flame: an overview [PDF]

, 2013
This review paper focuses to ascertain a new approach in turbulence generation on the structure of premixed flames and external combustion using a fractal grid pattern.
A Khalid, B Manshoor, Idris M S, Laizet S, M F Othman, Mandelbrot B, Mohd Adib M A H, Naga Sarada S, Nedic J, Queiros-Conde D, Salim S M M, Seoud R E Vassilicos J C, Sponfeldner T, Syam Sundar L, Tahseen T A, Tahseen T A, Tennekes, Vijaya Lakshmi B   +17 more
core   +1 more source

Simulation of Hydrogen-Air-Diluents Mixture Combustion in an Acceleration Tube with FlameFoam Solver

Energies, 2021
During a severe accident in a nuclear power plant, hydrogen can be generated, leading to risks of possible deflagration and containment integrity failure. To manage severe accidents, great experimental, analytical, and benchmarking efforts are being made
Mantas Povilaitis, Justina Jaseliūnaitė   +1 more
doaj   +1 more source

A fast, low-memory, and stable algorithm for implementing multicomponent transport in direct numerical simulations [PDF]

, 2019
Implementing multicomponent diffusion models in reacting-flow simulations is computationally expensive due to the challenges involved in calculating diffusion coefficients.
Beardsell, Guillaume, Blanquart, Guillaume, Fillo, Aaron J., Niemeyer, Kyle E., Schlup, Jason   +4 more
core   +2 more sources

Pressure-gradient tailoring effects on the turbulent flame-vortex dynamics of bluff-body premixed flames

Combustion and Flame, 2018
This paper explores the effects of pressure-gradient tailoring on the turbulent flame and vorticity generation mechanisms of premixed flames. A turbulent premixed flame stabilized by a bluff-body in a high-speed combustor is used for the investigation ...
Marissa K. Geikie, K. Ahmed
semanticscholar   +1 more source

The Interaction of High-Speed Turbulence with Flames: Global Properties and Internal Flame Structure

, 2011
We study the dynamics and properties of a turbulent flame, formed in the presence of subsonic, high-speed, homogeneous, isotropic Kolmogorov-type turbulence in an unconfined system.
A.Y. Poludnenko, Aspden, Bell, Bilger, Boger, Boris, Buschmann, Colella, Colella, Damköhler, Davidson, Dinkelacker, Driscoll, Dunn, E.S. Oran, Gamezo, Gamezo, Gardiner, Grinstein, Khokhlov, Kolmogorov, Lemaster, Libby, Liu, Mansour, Meneveau, Peters, Porter, Saltzman, Sankaran, Stone, Stone, Stone, Tanahashi, Williams, Zel’dovich, Zel’dovich   +36 more
core   +1 more source

Turbulent flame propagation with pressure oscillation in the end gas region of confined combustion chamber equipped with different perforated plates

, 2018
Experiments were conducted in a newly designed constant volume combustion chamber with a perforated plate by varying the initial conditions. Hydrogen–air mixtures were used and the turbulent flame, shock wave, and the processes of flame–shock ...
Lei Zhou, Dongzhi Gao, Jianfu Zhao, Haiqiao Wei, Xiaojun Zhang, Z. Xu, Rui Chen   +6 more
semanticscholar   +1 more source

Experimental Estimation of Turbulent Flame Velocity in Gasoline Vapor Explosion in Multi-Branch Pipes

Fire
The overpressure characteristics of gasoline explosions in multi-branch pipes are caused by various factors, with flame velocity as a particularly significant determinant.
Keyu Lin, Peili Zhang, Jimao Duan, Shuo Xiang, Ting’ao Shen, Chaoshan Yang   +5 more
doaj   +1 more source

Large Eddy Simulation of a Turbulent Spray Jet Flame Using Filtered Tabulated Chemistry

Journal of Combustion, 2020
This work presents Large Eddy Simulations of the unconfined CORIA Rouen Spray Burner, fed with liquid n-heptane and air. Turbulent combustion modeling is based on the Filtered TAbulated Chemistry model for LES (F-TACLES) formalism, designed to capture ...
Adrien Chatelier, Benoît Fiorina, Vincent Moureau, Nicolas Bertier   +3 more
doaj   +1 more source

Type Ia Supernova: Burning and Detonation in the Distributed Regime

, 2007
A simple, semi-analytic representation is developed for nuclear burning in Type Ia supernovae in the special case where turbulent eddies completely disrupt the flame. The speed and width of the ``distributed'' flame front are derived.
Damkohler G., Ropke F., S. E. Woosley
core   +1 more source