Pre-mixed laminar flames in a uniform magnetic field

Mizutani, Yukio; Fuchihata, Manabu; Ohkura, Yoshimasa

doi:10.1016/s0010-2180(00)00244-3

Cited by 24 publications

(12 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, research on flames in magnetic fields has been sparse in the terrestrial flame literature because the diffusion of magnetic fields under in terrestrial burning conditions is fast enough that any interaction between the flame and the magnetic field is quite limited. Some recent work has been done on the effect of ambient magnetic fields on chemical flames (Mizutani et al 2001;Wakayama and Sugie 1996) where small effects were found mainly due to the effect on large-scale motions of paramagnetic gases such as O 2 .…”

Section: Supernovae Type Ia Progenitorsmentioning

confidence: 99%

The Linear Instability of Astrophysical Flames in Magnetic Fields

Dursi

2004

ApJ

View full text Add to dashboard Cite

Supernovae of Type Ia are used as standard candles for cosmological observations despite the as yet incomplete understanding of their explosion mechanism. In one model, these events are thought to result from subsonic burning in the core of an accreting Carbon/Oxygen white dwarf that is accelerated through flame wrinkling and flame instabilities. Many such white dwarfs have significant magnetic fields. Here we derive the linear effects of such magnetic fields on one flame instability, the well-known Landau-Darrieus instability. When the magnetic field is strong enough that the flame is everywhere sub-Alfvenic, the instability can be greatly suppressed. Super-Alfvenic flames are much less affected by the field, with flames propagating parallel to the field somewh at destabilized, and flames propagating perpendicular to the field somewhat stabili zed. Trans-Alfvenic parallel flames, however, like trans-Alfvenic parallel shocks, are seen to be non-evolutionary; understanding the behavior of these flames will require careful numerical simulation.Comment: 31 pp, 11 fig, submitted to Ap

show abstract

Section: Supernovae Type Ia Progenitorsmentioning

confidence: 99%

The Linear Instability of Astrophysical Flames in Magnetic Fields

Dursi

2004

ApJ

View full text Add to dashboard Cite

show abstract

“…Indeed, the influence of a magnetic field on flame sooting behavior has not been directly investigated. As Mizutani et al [1] showed that a magnetic field as intense as 5 T hardly affects the chemical kinetics of combustion in flames, the authors' initial motivation is rather based on the magnetic effects on gas dynamics as the magnetic susceptibility discrepancies among the chemical species in combustion may induce selective migration of reactive species and/or mixture convection towards reaction zones [2]. Starting from this statement, Yamada et al [3,4] extensively studied a H 2 /air jet diffusion flame.…”

Section: Introductionmentioning

confidence: 96%

Magnetically induced flame flickering

Legros

Gomez

Fessard

et al. 2011

Proceedings of the Combustion Institute

View full text Add to dashboard Cite

“…This suggested that the potential ability of magnetic control of air and fuel flows and the combustion process of flame [49][50][51][52][53][54]. Ueno [49] exposed the methane, propane and hydrogen flames to gradient magnetic fields of up to 2.2 T and 300 T/m strengths and found that flames bent to escape from magnet fields with high intensity.…”

Section: Introductionmentioning

confidence: 99%

Nanoscale Characteristics and Reactivity of Nascent Soot from n-Heptane/2,5-Dimethylfuran Inverse Diffusion Flames with/without Magnetic Fields

et al. 2018

View full text Add to dashboard Cite

Abstract:In this study, the differences of nanostructure and oxidation reactivity of the nascent soot formed in n-heptane/2,5-dimethylfuran (DMF) inverse diffusion flames (IDF) with/without influence of magnetic fields were studied, and the effects of DMF-doped and magnetic fields were discussed. Morphology and nanostructures of the soot samples were investigated using high-resolution transmission electron spectroscopy and X-ray diffraction, and the oxidation reactivity characteristics were analyzed by thermogravimetric analyzer. Results demonstrated that both additions of DMF-doped and magnetic fields could promote soot production and modify the soot nanostructure and oxidation reactivity in IDF. Soot production increased along with the increase of DMF-doped. With DMF blends, more clustered soot particles and typical core-shell structures with well-organized fringes were exhibited compared with that formed from the pure n-heptane IDF. With effects of magnetic fields, the precursor formation and the oxidization of soot were promoted, soot production was enhanced. Soot particles became relatively more mature with typical core-shell structure, thicker shell, longer fringe lengths, smaller fringe tortuosity, higher graphitization degree and lower oxidation reactivity. With magnetic force pointed to the central line and the inner direction of IDF under the conditions of N pole and S pole of the magnet facing the flame, oxygen was trapped, having an increased residence time to get more chance to react with the fuel molecules to cause more soot to be yielded and oxidized. That resulted in the soot precursor promotion, soot production enhancement, and soot part-oxidization and graphitization.

show abstract

Pre-mixed laminar flames in a uniform magnetic field

Cited by 24 publications

References 0 publications

The Linear Instability of Astrophysical Flames in Magnetic Fields

The Linear Instability of Astrophysical Flames in Magnetic Fields

Magnetically induced flame flickering

Nanoscale Characteristics and Reactivity of Nascent Soot from n-Heptane/2,5-Dimethylfuran Inverse Diffusion Flames with/without Magnetic Fields

Contact Info

Product

Resources

About