One-dimensional turbulence modeling of a turbulent counterflow flame with comparison to DNS

  • The one-dimensional turbulence (ODT) model is applied to a reactant-to-product counterflow configuration and results are compared with DNS data. The model employed herein solves conservation equations for momentum, energy, and species on a one dimensional (1D) domain corresponding to the line spanning the domain between nozzle orifice centers. The effects of turbulent mixing are modeled via a stochastic process, while the Kolmogorov and reactive length and time scales are explicitly resolved and a detailed chemical kinetic mechanism is used. Comparisons between model and DNS results for spatial mean and root-mean-square (RMS) velocity, temperature, and major and minor species profiles are shown. The ODT approach shows qualitatively and quantitatively reasonable agreement with the DNS data. Scatter plots and statistics conditioned on temperature are also compared for heat release rate and all species. ODT is able to capture the range of results depicted by DNS. However, conditional statistics show signs of underignition.

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Metadaten
Author: Zoltan Jozefik, Alan R. KersteinORCiD, Heiko SchmidtORCiD, Sgouria Lyra, Hemanth Kolla, Jackie H. Chen
DOI:https://doi.org/10.1016/j.combustflame.2015.05.010
ISSN:0010-2180
Title of the source (English):Combustion and Flame
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2015
Volume/Year:162
Issue number:8
First Page:2999
Last Page:3015
Faculty/Chair:Fakultät 3 Maschinenbau, Elektro- und Energiesysteme / FG Numerische Strömungs- und Gasdynamik
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