Analysis of turbulent premixed flame structure using simultaneous PIV-OHPLIF

被引:5
作者
Cho, Y [1 ]
Kim, JH
Cho, T
Moon, I
Yoon, Y
Lee, C
机构
[1] Seoul Natl Univ, Sch Mech & Aerosp Engn, Seoul 151742, South Korea
[2] Konkuk Univ, Dept Aerosp Engn, Seoul 143701, South Korea
关键词
simultaneous PIV-OHPLIF; opposed impinging jet combustor; Borghi diagram; the strain rate-chemical intensity diagram; combustion phase diagram; thickened reaction regime;
D O I
10.1007/BF03181484
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
In the present study, we used a simultaneous PIV-OH PLIF measurement to acquire the strain rate and the chemical intensity and suggested a new combustion phase diagram. This simultaneous measurement was used to analyze the flame structure and to classify the combustion regimes of the opposed impinging jet combustor according to the change of the orifice diameters at the pre-chambers. The shear strain rates were obtained from the velocity measurement by PIV to represent flow characteristics and the OH radical intensities were obtained from OH PLTF to indicate the flame characteristics. When the strain rate and OH intensity at each point of the measurement zones are plotted at the strain rate-chemical intensity diagram, the distribution of each case showed the characteristics of each flame regime. The change of combustor condition made different distribution in the combustion phase diagram. As the orifice diameter of the pre-chamber decreases, well-mixed turbulent names are produced and the combustion phase is moved from the moderated turbulence regime to the thickened reaction regime.
引用
收藏
页码:43 / 54
页数:12
相关论文
共 18 条
[1]   COMBUSTION REGIMES AND THE STRAINING OF TURBULENT PREMIXED FLAMES [J].
ABDELGAYED, RG ;
BRADLEY, D ;
LUNG, FKK .
COMBUSTION AND FLAME, 1989, 76 (02) :213-218
[2]  
BORGHI R, 1984, STRUCTURE TURBULENT
[3]   Extinction of premixed flames in turbulent counterflowing streams with unequal enthalpies [J].
Bray, KNC ;
Champion, M ;
Libby, PA .
COMBUSTION AND FLAME, 1996, 107 (1-2) :53-64
[4]   A turbulent jet chemical reaction model:: NOx production in jet flames [J].
Broadwell, JE ;
Lutz, AE .
COMBUSTION AND FLAME, 1998, 114 (3-4) :319-335
[5]  
Chen JH, 1998, TWENTY-SEVENTH SYMPOSIUM (INTERNATIONAL) ON COMBUSTION, VOLS 1 AND 2, P819
[6]   FLAME QUENCHING BY TURBULENCE [J].
CHOMIAK, J ;
JAROSINSKI, J .
COMBUSTION AND FLAME, 1982, 48 (03) :241-249
[7]   THE EFFECT OF STRAIN RATE ON A PREMIXED LAMINAR FLAME [J].
DARABIHA, N ;
CANDEL, SM ;
MARBLE, FE .
COMBUSTION AND FLAME, 1986, 64 (02) :203-217
[8]  
Friedlander S. K., 2000, SMOKE DUST HAZE, P222
[9]  
HAN DH, 2000, P COMB I, V28
[10]   EXPERIMENTAL-STUDY OF PREMIXED TURBULENT COMBUSTION IN OPPOSED STREAMS .2. REACTING FLOW FIELD AND EXTINCTION [J].
KOSTIUK, LW ;
BRAY, KNC ;
CHENG, RK .
COMBUSTION AND FLAME, 1993, 92 (04) :396-409