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

被引：19
|
作者：
Jozefik, Zoltan [1 ]
Kerstein, Alan R.
Schmidt, Heiko [1 ]
Lyra, Sgouria [2 ]
Kolla, Hemanth [2 ]
Chen, Jackie H. [2 ]
机构：
[1] Brandenburg Tech Univ Cottbus Senftenberg, Siemens Halske Ring 14, D-03046 Cottbus, Germany
[2] Sandia Natl Labs, Combust Res Facil, Livermore, CA USA
来源：
COMBUSTION AND FLAME | 2015年 / 162卷 / 08期
关键词：
Counterflow; Turbulent flame; One-dimensional-turbulence model; Numerical simulations; DIFFUSION FLAMES; PREMIXED FLAMES; JET FLAMES; SIMULATION; COMBUSTION; FORMULATION; EXTINCTION; REIGNITION; CLOSURE; FLOWS;
D O I：
10.1016/j.combustflame.2015.05.010
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
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. (C) 2015 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
引用
收藏
页码：2999 / 3015
页数：17
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