Results 101 to 110 of about 32,749 (219)

Dynamics of premixed confined swirling flames

Comptes Rendus. Mécanique, 2009
Considerable effort is currently being extended to examine the fundamental mechanisms of combustion instabilities and develop methods allowing predictions of these phenomena. One central aspect of this problem is the dynamical response of the flame to incoming perturbations. This question is examined in the present article, which specifically considers
Palies, P., Durox, D., Schuller, Thierry, Morenton, P., Candel, S.   +4 more
openaire   +2 more sources

DNS of turbulence backscatter in a laboratory-scale swirl stabilized aero-combustor

Applications in Energy and Combustion Science
Classical theories of turbulence suggest that the kinetic energy cascade in nonreacting flows has a net transfer of energy from large to small scales. However, previous studies demonstrated that the thermal expansion of premixed flames can reverse the ...
Bruno S. Soriano, Jacqueline H. Chen
doaj   +1 more source

Flame structure simulation in a methane/air coflow partially premixed burner

Revista Facultad de Ingeniería Universidad de Antioquia, 2014
The effect of the equivalence ratio on the partially premixed methane / air laminar flame structure, in a coflow atmospheric burner was simulated. Three equivalence ratios were studied (Φ=1.6, Φ=2.0, Φ=3.5) keeping constant the released energy.
Julio Rendón, Francisco Cadavid, Andrés Amell   +2 more
doaj   +1 more source

Effects of porous insertion in a round-jet burner on flame characteristics of turbulent non-premixed syngas combustion

Case Studies in Thermal Engineering, 2019
Synthesis gas (Syngas) is a gaseous mixture that consists of 3 species. It is used in creating synthetic natural gas. In this work, the turbulent non-premixed flame of syngas-air combustion in a round-jet burner is numerically investigated. The burner is
Santiphong Klayborworn, Watit Pakdee
doaj   +1 more source

Study of burner geometry effects on non-premixed flame response under acoustic excitation

Journal of Low Frequency Noise, Vibration and Active Control, 2019
The study of the flame under the acoustic excitation contributes to the study of flame self-excited thermoacoustic instability. Although non-premixed combustion is widely used in industry, research on its combustion instability characteristics is ...
Hao Zhou, Sheng Meng, Chengfei Tao, Zihua Liu   +3 more
doaj   +1 more source

Numerical simulation of an industrial radiant tube burner using OpenFOAM

Fuel Communications
This study presents a numerical investigation into the effects of physical models on the prediction accuracy of the wall temperature distribution in an industrial radiant tube burner.
Namsu Kim, Young Tae Guahk, Chang-bog Ko
doaj   +1 more source

Effect of the Inclination Angle on Premixed Flame Dynamics in Half-Open Ducts. [PDF]

ACS Omega, 2020
Yao Z, Deng H, Dong J, Wen X, Zhao W, Wang F, Chen G, Zhang X, Zhang Q.   +8 more
europepmc   +1 more source

Modelling extinction and reignition in turbulent flames [PDF]

, 2008
The presented work attempts to extend the conditional moment closure method for noon-premixed. turbulent combustion to predict extinction and reignition phenomena in turbulent flames.
Kostka, Markus, Kostka, Markus
core  

Flammability and Propagation Dynamics of Planar Freely Propagating Dimethyl Ether Premixed Flame. [PDF]

ACS Omega, 2020
Liu C, Zhang Y, Xiong D, Huang X, Zhang P, Kang Y, Lu X, Wang Q.   +7 more
europepmc   +1 more source

LES modelling of nitric oxide (NO) formation in a propane-air turbulent reacting flame [PDF]

, 2014
Large Eddy Simulation (LES) technique is applied to investigate the nitric oxide (NO) formation in the propane-air flame inside a cylindrical combustor.
Paul, Manosh C., Paul, Sreebash C., Saha, Suvash C.   +2 more
core