Dynamic and hydrodynamic response of premixed methane-air flame to nanosecond pulsed discharges

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	Dynamic and hydrodynamic response of premixed methane-air flame to nanosecond pulsed discharges
	Zhang SH(张少华); Yu XL(余西龙); Xiong H(熊恒); Zeng H(曾徽); Li F(李飞)
	2014
会议名称	The 29th International Symposium on Rarefied Gas Dynamics
会议日期	2014-07-13
会议地点	中国陕西西安
中文摘要	Nanosecond pulsed discharges were applied to an experimental study for exploring the temporal response of a premixed methane/air Bunsen flame with two optical diagnostic methods. The microstructure and dynamic response of flame to the discharges was observed by a schlieren system, and the radial velocity of the shock wave was also measured. Time-resolved optical emission spectroscopy offered intermediate species, their evolutionary timescales and temperature in the plasma region. While the ultrafast heating mechanism of NPD was confirmed, the experimental results also provided lots of critical data for understanding the dynamics of non-equilibrium plasma produced by NPD and performing further numerical simulation. In addition, it also indicates that NPD can stir reactant gases and interact with flame by the generated shock wave and vortices while it produces more reactive plasma than LIBS. It makes the technique may be more suited for applications in combustion enhancement and instability control.
收录类别	CPCI-S
会议网址	http://dx.doi.org/10.1063/1.4902614
会议录	Proceedings of 29th International Symposium on Rarefied Gas Dynamics/AIP Conference Proceedings, v.1632
语种	英语
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/55216]
专题	力学研究所_高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Zhang SH,Yu XL,Xiong H,et al. Dynamic and hydrodynamic response of premixed methane-air flame to nanosecond pulsed discharges[C]. 见:The 29th International Symposium on Rarefied Gas Dynamics. 中国陕西西安. 2014-07-13.http://dx.doi.org/10.1063/1.4902614.