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

	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)
会议录名称	Proceedings of 29th International Symposium on Rarefied Gas Dynamics/AIP Conference Proceedings, v.1632
	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
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.
课题组名称	LHD高温气流激光诊断
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收录类别	CPCI-S
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/55216
专题	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]Proceedings of 29th International Symposium on Rarefied Gas Dynamics/AIP Conference Proceedings, v.1632,2014.

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