Does flame-generated vorticity increase turbulent burning velocity?
Artikel i vetenskaplig tidskrift, 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

Författare

Andrei Lipatnikov

Chalmers, Mekanik och maritima vetenskaper, Förbränning

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

Styrkeområden

Transport

Energi

Fundament

Grundläggande vetenskaper

Ämneskategorier

Strömningsmekanik och akustik

DOI

10.1063/1.5046137

Mer information

Senast uppdaterat

2018-09-03