Results 31 to 40 of about 33,560 (226)

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

open access: yes, 2019
Implementing multicomponent diffusion models in reacting-flow simulations is computationally expensive due to the challenges involved in calculating diffusion coefficients.
Beardsell, Guillaume   +4 more
core   +2 more sources

Furnace MILD combustion versus its open counterpart in hot coflow

open access: yesApplications in Energy and Combustion Science
The open jet flame in hot co-flow (JHC) has been frequently utilized for fundamental investigations of Moderate or Intense Low-oxygen Dilution (MILD) combustion due to its controllable conditions and relatively easy measurement capabilities.
X. Liu   +5 more
doaj   +1 more source

Large-Eddy Simulation of combustion instabilities in a variable-length combustor. [PDF]

open access: yes, 2013
This article presents a simulation of a model rocket combustor with continuously variable acoustic properties thanks to a variable-length injector tube. Fully compressible Large-Eddy Simulations are conducted using the AVBP code.
Garby, Romain   +2 more
core   +3 more sources

DNS for Turbulent Premixed Combustion

open access: yes, 2021
Most of practical combustion occurs in turbulent flows which involve strong coupling between turbulence and chemical processes. The heat release from combustion alters the fluid properties such as density and viscosity and in turns affects the turbulence.
Dipal, Patel,, Martin, Agelin-Chaab,
openaire   +3 more sources

Effect of Air/Fuel Burning Pattern on NO Emission Characteristics for NH3/CH4 Cofiring Flames

open access: yesEnergies
Ammonia (NH3) is a promising zero-carbon fuel, but it faces critical challenges in combustion utilization, especially NO emission. Intensive previous studies have been carried out to deepen the understanding towards NH3 combustion and NO emission ...
Xuehui Jing   +3 more
doaj   +1 more source

Flame spread in laminar mixing layers: the triple flame [PDF]

open access: yes, 1993
In the present paper we investígate flame spread in laminar mixing layers both experimentally and numerically. First, a burner has been designed and built such that stationary triple ñames can be stabilised in a coflowing stream with well defined linear ...
Bray, K.N.C.   +3 more
core   +2 more sources

Imaging Diagnositics of Combustion Instability in Premixed Swirling Combustion

open access: yesProceedings of Global Power & Propulsion Society, 2019
An experimental study on combustion instability is presented with focus on propane-air premixed swirling flames. Swirling flames under self-excited oscillation are studied by imaging of visible light and OH* chemiluminescence filter under several typical conditions.
Yao Yang   +4 more
openaire   +1 more source

A Numerical Simulation Study on the Combustion of Natural Gas Mixed with Hydrogen in a Partially Premixed Gas Water Heater

open access: yesEnergies
To investigate the impact of blending natural gas with hydrogen on the combustion performance of partially premixed gas water heaters, a framelet-generated manifold (FGM) was employed for lower-order simulation of combustion processes.
Siqi Li   +4 more
doaj   +1 more source

The Influence of Bound Nitrogen Content in the Gaseous Fuel on the Formation of NOx

open access: yesChemical Engineering Transactions, 2014
This paper describes the experiences with the combustion of gaseous fuel that contains as one of the components the nitrogen of low concentration. Such gaseous fuel with the bound nitrogen is mostly used in the primary steam reformer furnaces.
P. Skryja, P. Belohradský, I. Hudák
doaj   +1 more source

Combustion Characteristics and Laminar Flame Speed of Premixed Ethanol-Air Mixtures with Laser-Induced Spark Ignition [PDF]

open access: yes, 2018
Laser-induced spark-ignition (LISI) has an advanced ignition technique with a few benefits over spark ignition. In this study, flame morphology, laminar flame characteristics and combustion characteristics of premixed anhydrous ethanol and air mixtures ...
Badawy   +24 more
core   +1 more source

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