Flow Field of Turbulent Premixed Combustion in a Cyclone-Jet Combustor

被引：3
|
作者：
Yamamoto, Kazuhiro [1 ]
Inoue, Satoshi [1 ]
Yamashita, Hiroshi [1 ]
Shimokuri, Daisuke [2 ]
Ishizuka, Satoru [2 ]
机构：
[1] Nagoya Univ, Dept Mech Sci & Engn, Chikusa Ku, Aichi 4648603, Japan
[2] Hiroshima Univ, Dept Mech Engn, Hiroshima 7398527, Japan
来源：
JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY | 2007年 / 2卷 / 01期
关键词：
Flame; Premixed Combustion; Turbulence; PIV; Jet;
D O I：
10.1299/jtst.2.90
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The flow field in highly turbulent premixed combustion has been examined, using a cyclone-jet combustor. The shear-strain rate is obtained by PIV system. Results show that, in combustion field, mean axial velocity does not decay along center axis and RMS fluctuation velocity is much lower, compared with those in cold flow. The reaction zone detected by an ion probe well corresponds to region of large shear-strain rate. In combustion, turbulence is small around reaction zone to have the undiminished jet velocity, which leads to an increase in length of potential core, although the flame generated turbulence is observed through flow expansion.
引用
收藏
页码：90 / 101
页数：12
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