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Premixed flame

About: Premixed flame is a research topic. Over the lifetime, 9890 publications have been published within this topic receiving 255931 citations.


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Journal ArticleDOI
TL;DR: In this paper, an experimental and detailed chemical kinetic modeling work has been performed to investigate aromatic and polycyclic aromatic hydrocarbons (PAH) formation pathways in a premixed, rich, sooting, n-butane-oxygen-argon burner stabilized flame.

552 citations

Journal ArticleDOI
01 Jan 2000
TL;DR: It is shown that using FPI, the correct evolution is obtained for all species from almost unstrained flames up to flames near extinction, and the computational times are tremendously reduced with FPI in comparison with full chemistry.
Abstract: The cost of including full kinetics in realistic computations remains extremely high. This has led many researchers to develop reduction techniques for the chemistry. These methods are generally valid only in a very limited range of equivalence ratio, pressure, or temperature and require extensive human time to develop the reduced schemes. Recently, an automatic method based on intrinsic low-dimensional manifolds (ILDM) has been proposed. Because of ILDM, the reduction of detailed reaction schemes is much simuplified, leading to the fast generation of look-up tables containing the information corresponding to the reduced chemical schemes. Nevertheless, the ILDM method is not well suited to describe the low-temperature domain, since the dimension and therefore the complexity of the databases increase tremendously in this zone. In this work, we propose a new version of the ILDM method, called flame prolongation of ILDM (FPI), which enables us to solve the problem at low temperatures. We used laminar premixed free flames to extend the manifolds generated with ILDM, thus leading to smooth and accurate evolutions of the species along all the flame front. In order to demonstrate the interest of FPI, we computed the response of a premixed flame to straining using the double-premixed counterflow flame configuration. We show that using FPI, the correct evolution is obtained for all species from almost unstrained flames up to flames near extinction. The computational times are tremendously reduced with FPI in comparison with full chemistry.

538 citations

Journal ArticleDOI
TL;DR: In this paper, the authors investigated the utility of several experimental observables as measurements of local burning and heat release rates for a premixed stoichiometric N2-diluted methane-air flame in two-dimensional unsteady vortical flow.

537 citations

Journal ArticleDOI
TL;DR: In this paper, the authors construct an analytical model to describe the dynamic response of a laminar premixed flame stabilized on the rim of a tube to velocity oscillation, and obtain a time-domain differential equation describing the relationship between the velocity perturbation and the heat release response over the entire frequency range.

530 citations

Journal ArticleDOI
TL;DR: In this paper, the effects of stretch on the flame structure, and by allowing for mixture nonequidiffusion, the flame responses, especially the flame speed, can be quantitatively as well as qualitatively modified.

518 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023208
2022359
2021196
2020145
2019167
2018171