Results 41 to 50 of about 21,455 (208)

Computer simulation of vortex combustion processes in fire-tube boilers

EPJ Web of Conferences, 2015
The article describes computer simulation of the turbulent methane-air combustion in a fire-tube boiler furnace. Computer simulations performed for variants of once-through fire-tube furnace and reversive flame furnace.
Khaustov Sergei A., Zavorin Alexander S., Buvakov Konstantin V., Kudryashova Lidiya D., Tshelkunova Anastasiya V.   +4 more
doaj   +1 more source

Implementation of the Scalar Dissipation Rate in the REDIM Concept and its Validation for the Piloted Non-Premixed Turbulent Jet Flames

Eurasian Chemico-Technological Journal, 2021
In order to address the impact of the concentration gradients on the chemistry – turbulence interaction in turbulent flames, the REDIM reduced chemistry is constructed incorporating the scalar dissipation rate, which is a key quantity describing the ...
Chunkan Yu, U. Maas
doaj   +1 more source

Multi-Scale Turbulence Injector: a new tool to generate intense homogeneous and isotropic turbulence for premixed combustion

, 2010
Nearly homogeneous and isotropic, highly turbulent flow, generated by an original multi-scale injector is experimentally studied. This multi-scale injector is made of three perforated plates shifted in space such that the diameter of their holes and ...
Danaila, Luminita, Mazellier, Nicolas, Renou, Bruno   +2 more
core   +3 more sources

The Effect of Jet-Induced Disturbances on the Flame Characteristics of Hydrogen–Air Mixtures

Fire
To mitigate explosion hazards arising from hydrogen leakage and subsequent mixing with air, the injection of inert gases can substantially diminish explosion risk. However, prevailing research has predominantly characterized inert gas dilution effects on
Xinyu Chang, Mengyuan Ge, Kai Wang, Bo Zhang, Sheng Xue, Yu Sun   +5 more
doaj   +1 more source

Further experimental results on the structure and acoustics of turbulent jet flames [PDF]

, 1975
The structure of open turbulent jet flames is experimentally studied in the context of their noise emission characteristics. The differences between premixed and (co-flow) non-premixed flames are explored.
Kumar, R. N.
core  

Stable combustion of a high-velocity gas in a heated boundary layer [PDF]

, 1960
N/
Turcotte, Donald L.
core   +1 more source

Learning-Based Super-Resolution Imaging of Turbulent Flames in Both Time and 3D Space Using Double GAN Architectures

Fire
This article presents a spatiotemporal super-resolution (SR) reconstruction model for two common flame types, a swirling and then a jet flame, using double generative adversarial network (GAN) architectures.
Chenxu Zheng, Weiming Huang, Wenjiang Xu
doaj   +1 more source

LES evaluation of the effects of equivalence ratio fluctuations on the dynamic flame response in a real gas turbine combustion chamber [PDF]

, 2013
Large Eddy Simulations (LES) of a lean swirl-stabilized gas turbine burner are used to analyze mechanisms triggering combustion instabilities. To separately study the effect of velocity and equivalence ratio fluctuations, two LES of the same geometry are
Gicquel, Laurent Y.M., Hermeth, Sebastian, Poinsot, Thierry, Staffelbach, Gabriel   +3 more
core   +4 more sources

Flow field and local burning velocity affected by stretch in swirl flow of turbulent premixed flames

Journal of Thermal Science and Technology, 2022
In this study, we have investigated turbulent premixed flames affected by local stretch in a swirl flow, measured by the simultaneous OH-PLIF/SPIV system. Evaluating the transient of burning velocity and stretch rate, the flow and the flame dynamics in a
Kazuhiro YAMAMOTO, Kenta YAMAMORI, Hiromu SUZUKI   +2 more
doaj   +1 more source

Calculation of turbulent diffusion jets under effects of gravity and moving surrounding air

Vietnam Journal of Mechanics, 2001
The basis theory for the turbulent diffusion of jet and flame has been presented previously [1, 2]. But that one applies only in quiet surrounding air with the effects of buoyancy neglected.
Bui Van Ga, Nhan Hong Quang, Jean Marc Vignon   +2 more
doaj   +1 more source