A DNS study of sensitivity of scaling exponents for premixed turbulent consumption velocity to transient effects
Journal article, 2019
wave size. These results imply that the scaling exponents obtained from premixed turbulent flames of different configurations may be different not only due to the well-known effects of the mean-flame-brush curvature and the mean flow non-uniformities, but also due to the flame development, even if the different flames are at the same stage of their development. The emphasized transient effects can, at least in part, explain significant scatter of the scaling exponents obtained by various research groups in different experiments, thus, implying that the scatter in itself is not sufficient to reject the notion of turbulent burning velocity.
Premixed turbulent combustion · Burning velocity · Consumption velocity · Turbulent flame development · DNS
Chalmers, Mechanics and Maritime Sciences, Combustion
Flow, Turbulence and Combustion
1386-6184 (ISSN) 1573-1987 (eISSN)Vol. 102 679-698
Fluid Mechanics and Acoustics