Large eddy simulation and laser diagnostic studies on a low swirl stratified premixed flame

被引:104
作者
Nogenmyr, K. -J. [1 ]
Fureby, C. [2 ]
Bai, X. S. [1 ]
Petersson, R. [3 ]
Collin, R. [3 ]
Linne, M. [3 ]
机构
[1] Lund Inst Technol, Dept Energy Sci, S-22100 Lund, Sweden
[2] Swedish Defense Res Agcy FOI, Div Weapons & Protect, Stockholm, Sweden
[3] Lund Inst Technol, Dept Combust Phys, S-22100 Lund, Sweden
关键词
Lean premixed stratified flames; Low swirl; Laser diagnostics; Large eddy simulation; Level-set G-equation; Finite rate chemistry; TURBULENT COMBUSTION; VORTEX BREAKDOWN; FLOW; PLIF;
D O I
10.1016/j.combustflame.2008.06.014
中图分类号
O414.1 [热力学];
学科分类号
摘要
This paper presents numerical simulations and laser diagnostic experiments of a swirling lean premixed methane/air flame with an aim to compare different Large Eddy Simulations (LES) models for reactive flows. An atmospheric-pressure laboratory swirl burner has been developed wherein lean premixed methane/air is injected in an unconfined low-speed flow of air. The flame is stabilized above the burner rim in a moderate swirl flow, triggering weak vortex breakdown in the downstream direction. Both stereoscopic (3-component) PIV and 2-component PIV are used to investigate the flow. Filtered Rayleigh scattering is used to examine the temperature field in the leading flame front. Acetone-Planar Laser Induced Fluorescence (PLIF) is applied to examine the fuel distribution. The experimental data are used to assess two different LES models: one based on level-set G-equation and flamelet chemistry, and the other based on finite rate chemistry with reduced kinetics. The two LES models treat the chemistry differently, which results in different predictions of the flame dynamic behavior and statistics. Yet, great similarity of flame structures was predicted by both models. The LES and experimental data reveal several intrinsic features of the low swirl flame such as the W-shape at the leading front, the highly wrinkled fronts in the shear layers, and the existence of extinction holes in the trailing edge of the flame. The effect of combustion models, the numerical solvers and boundary conditions on the flame and flow predictions was systematically examined. (c) 2008 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
引用
收藏
页码:25 / 36
页数:12
相关论文
共 64 条
[31]   Weighted ENO schemes for Hamilton-Jacobi equations [J].
Jiang, GS ;
Peng, DP .
SIAM JOURNAL ON SCIENTIFIC COMPUTING, 2000, 21 (06) :2126-2143
[32]   Large Eddy Simulation of turbulent combustion processes [J].
Jones, WP .
COMPUTER PHYSICS COMMUNICATIONS, 2002, 147 (1-2) :533-537
[33]  
JOSHI ND, 1994, 94GT253 ASME
[34]   Large-eddy simulation of a gas turbine combustor flow [J].
Kim, WW ;
Menon, S ;
Mongia, HC .
COMBUSTION SCIENCE AND TECHNOLOGY, 1999, 143 (1-6) :25-+
[35]   A digital filter based generation of inflow data for spatially developing direct numerical or large eddy simulations [J].
Klein, M ;
Sadiki, A ;
Janicka, J .
JOURNAL OF COMPUTATIONAL PHYSICS, 2003, 186 (02) :652-665
[36]  
Lu L., 2004, Proceedings 2004 CTR Summer Program, P283
[37]   Vortex breakdown: a review [J].
Lucca-Negro, O ;
O'Doherty, T .
PROGRESS IN ENERGY AND COMBUSTION SCIENCE, 2001, 27 (04) :431-481
[38]   Effects of flame stretch and wrinkling on CO formation in turbulent premixed combustion [J].
Nilsson, P ;
Bai, XS .
PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2002, 29 :1873-1879
[39]   Large eddy simulation and experiments of stratified lean premixed methane/air turbulent flames [J].
Nogenmyr, K. -J. ;
Petersson, P. ;
Bai, X. S. ;
Nauert, A. ;
Olofsson, J. ;
Brackman, C. ;
Seyfried, H. ;
Zetterberg, J. ;
Li, Z. S. ;
Richter, M. ;
Dreizler, A. ;
Linne, M. ;
Alden, M. .
PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2007, 31 (1467-1475) :1467-1475
[40]   Large eddy simulations of an acoustically excited turbulent premixed flame [J].
Nottin, C ;
Knikker, R ;
Boger, M ;
Veynante, D .
PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2000, 28 :67-73