Numerical study on the hydrodynamic instability of high-temperature premixed flames: Formation of three-dimensional cellular fronts

Satoshi Kadowaki, Yusuke Aoki, Wataru Yamazaki, Hideaki Kobayashi

Research output: Contribution to conferencePaperpeer-review

Abstract

The formation of three-dimensional cellular fronts in high-temperature premixed flames at the Lewis number of unity was numerically studied, under the conditions of constant burned-gas temperature. On a planar flame, we superimposed a disturbance with the critical wavelength which was obtained from the dispersion relation. The superimposed disturbance evolved, and a cellular-shaped flame front formed. The shape of cellular fronts became smoother as the unburned-gas temperature became higher, even though the growth rate increased. The burning velocity of a cellular flame normalized by that of a planar flame decreased, which was due to the weakness of thermal-expansion effects.

Original languageEnglish
Publication statusPublished - 2013 Jan 1
Event9th Asia-Pacific Conference on Combustion, ASPACC 2013 - Gyeongju, Korea, Republic of
Duration: 2013 May 192013 May 22

Other

Other9th Asia-Pacific Conference on Combustion, ASPACC 2013
CountryKorea, Republic of
CityGyeongju
Period13/5/1913/5/22

ASJC Scopus subject areas

  • Environmental Engineering

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