Does flame-generated vorticity increase turbulent burning velocity?
Journal article, 2018

Direct numerical simulation data obtained from a statistically stationary, 1D, planar, weakly turbulent, premixed flame, which is associated with the flamelet combustion regime, are analyzed in order to show that generation of vorticity due to baroclinic torque within flamelets can impede wrinkling the reaction surface, reduce its area, and decrease the burning rate. These data call for revisiting the widely accepted concept of combustion acceleration due to flame-generated turbulence.

flame-generated turbulence

thermal expansion

DNS

combustion acceleration

premixed turbulent burning

Author

Andrei Lipatnikov

Chalmers, Mechanics and Maritime Sciences, Combustion

Vladimir Sabelnikov

Office national d'etudes et de recherches aerospatiales (ONERA)

Shinnosuke Nishiki

Kagoshima University

Tatsuya Hasegawa

Nagoya University

Physics of Fluids

1070-6631 (ISSN) 1089-7666 (eISSN)

Vol. 30 8 081702

Areas of Advance

Transport

Energy

Roots

Basic sciences

Subject Categories

Fluid Mechanics and Acoustics

DOI

10.1063/1.5046137

More information

Latest update

9/3/2018 1