Simultaneous high-speed SO2 PLIF imaging and stereo-PIV measurements in premixed swirling flame at 20 kHz

Yang Xiaoyuan; Fu Chen; Wang Guoqing; Li Zhongqiu; Li Tianyu; Gao Yi

首页> 外文期刊>Applied optics >Simultaneous high-speed SO2 PLIF imaging and stereo-PIV measurements in premixed swirling flame at 20 kHz

【24h】

Simultaneous high-speed SO2 PLIF imaging and stereo-PIV measurements in premixed swirling flame at 20 kHz

机译：在20 kHz的预混旋转火焰中同时同时高速SO2 PLIF成像和立体声PIV测量

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Interactions between flow structures and premixed swirling flame were investigated using simultaneous sulfur dioxide (SO2) planar laser induced fluorescence (PLIF) and stereoscopic particle imaging velocimetry (PIV) with high temporal resolution at 20 kHz. In this work, a premixed swirling flame was operated with methane and air doped with 0.5% (volume fraction) SO2 at ambient pressure under different equivalence ratios (Phi = 0.7-1.2). The results show that global SO2 PLIF signal shows a consistent response to the density ratio with the change of equivalence ratio, making it a good indicator for the high temperature zone and a very useful tool to study the global effect of equivalence ratio. In addition, the three-component flow structure is affected by the varying equivalence ratio and the structure of the inner recirculation zone changes accordingly. The transient results show that the circumferential velocity of some vortices outside the flame zone is inconsistent with that of the main flow and these vortices cause local flame contour curling and shedding. The high temporal resolution measurements provide more details for the study of the evolution of some isolated flame isles. (C) 2019 Optical Society of America

机译：使用同时的二氧化硫（SO2）平面激光诱导的荧光（PLIF）和立体颗粒成像速度（PIV）在20kHz时具有高时间分辨率，研究了流动结构和预热旋转火焰之间的相互作用。在这项工作中，在不同的等效比（PHI = 0.7-1.2）下，在环境压力下用甲烷和空气用0.5％（体积分数）SO 2的空气运行预混合的旋转火焰。结果表明，全局SO2 PLIF信号显示与等效率的变化对密度比的一致响应，使其成为高温区的良好指标和研究等同率的全球效果的非常有用的工具。另外，三组分流动结构受不同的等效比的影响，并且内再循环区域的结构相应地变化。瞬态结果表明，火焰区外的一些涡流的圆周速度与主流的圆周速度不一致，这些涡流导致局部火焰轮廓卷曲和脱落。高时的分辨率测量提供了研究一些分离的火焰群体的演变的更多细节。（c）2019年光学学会

著录项

来源
《Applied optics》 |2019年第10期|共9页
作者
Yang Xiaoyuan; Fu Chen; Wang Guoqing; Li Zhongqiu; Li Tianyu; Gao Yi;
展开▼
作者单位

Shanghai Jiao Tong Univ Sch Mech Engn 800 Dongchuan Rd Shanghai 200240 Peoples R China;

Shanghai Jiao Tong Univ Sch Mech Engn 800 Dongchuan Rd Shanghai 200240 Peoples R China;

Shanghai Jiao Tong Univ Sch Mech Engn 800 Dongchuan Rd Shanghai 200240 Peoples R China;

Shanghai Jiao Tong Univ Sch Mech Engn 800 Dongchuan Rd Shanghai 200240 Peoples R China;

Shanghai Jiao Tong Univ Sch Mech Engn 800 Dongchuan Rd Shanghai 200240 Peoples R China;

Shanghai Jiao Tong Univ Sch Mech Engn 800 Dongchuan Rd Shanghai 200240 Peoples R China;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类应用;
关键词

Simultaneous high-speed SO2 PLIF imaging and stereo-PIV measurements in premixed swirling flame at 20 kHz

摘要

著录项

相关主题

期刊订阅