STUDY ON FLAME STRUCTURE FOR JET AND FLAT FLAME WITH OR WITHOUT REACTING USING PIV
An experimental study on propane-air flame structure for non-reacting and reacting flow is reported. Experimental apparatus consists of a jet flame system and a flat flame system. Both are equipped with particle image velocimetry (PIV) to measure the flame velocity. For jet flame, it is measured for propane-air flame jetted from a narrow-angled conical burner in which the flow is accelerated axially. Flame photograph, velocity distribution within and around the flame are obtained using PIV. In the combustion process, the total reacting flow velocity magnitudes and turbulence are stronger, and velocity attenuation along axial direction is slower comparing with non-reacting flow. For flat flame, stream lines and velocity distribution for both situation flows are obtained using PIV. The detail velocity and turbulence characteristics and flame structure are analyzed. In the combustion process, the thickness of wall-attached jet is thinner, and both the radius and the circumfluence velocity of the central circumfluence zone are increased compared with test results of non-reacting flow.
Particle image velocimetry Flame structure Flat flame Jet flame Reacting
Baowei LI Yazhu ZHANG Zengwu ZHAO Wenfei WU Zhijun GONG Daqiang CANG
Institute of Metallurgical Engineering, Inner Mongolia University of Science and Technology, Baotou, School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou, PRC School of Metallurgical and Ecological Engineering, University of Scenece and Technology Beijing, Be
国际会议
第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)
武汉
英文
192-195
2007-12-01（万方平台首次上网日期，不代表论文的发表时间）