Hypergolic ignition modulated by head-on collision, intermixing and convective cooling of binary droplets with varying sizes

doi:10.1016/j.ijheatmasstransfer.2019.05.040

	Hypergolic ignition modulated by head-on collision, intermixing and convective cooling of binary droplets with varying sizes
	Zhang DW; Yu DH; Zhang P; Yuan YM(袁越明); Yue LJ(岳连捷); Zhang TC(张泰昌); Fan XJ(范学军)
通讯作者	Zhang, Peng(pengzhang.zhang@polyu.edu.hk)
发表期刊	INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
	2019-08-01
卷号	139 页码:475-481
ISSN	0017-9310
摘要	The hypergolic ignition induced by the head-on collision of TMEDA and WFNA droplets was experimentally investigated with emphasis on the effect of droplet size on the ignitibility and the ignition delay time. The ignitibility regime nomogram in We - d(o) space indicates that the reduction of droplet size tends to suppress the hypergolic ignition. The ignition delay time, which was precisely determined by using grayscale level analysis, becomes shorter for smaller droplets. The seemingly conflicting size effects were resolved by means of time scaling analysis to reveal the size dependence of the three pre-ignition processes, which were identified as the first stage of droplet collision, deformation and intermixing, the second stage of droplet heating from interior to surface, and the third stage of droplet vaporization subject to heat loss by convective cooling. (C) 2019 Elsevier Ltd. All rights reserved.
DOI	10.1016/j.ijheatmasstransfer.2019.05.040
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000473381300040
关键词[WOS]	NITRIC-ACID ; N,N,N',N'-TETRAMETHYLETHYLENEDIAMINE ; COALESCENCE ; SEPARATION
WOS研究方向	Thermodynamics ; Engineering ; Mechanics
WOS类目	Thermodynamics ; Engineering, Mechanical ; Mechanics
资助项目	Hong Kong RGC/GRF[PolyU 152217/14E] ; Hong Kong RGC/GRF[PolyU 152651/16E] ; NSFC[91641105] ; Hong Kong Polytechnic University[G-YBXN] ; Hong Kong Polytechnic University[G-SB1Q] ; Key Laboratory of High-temperature Gas Dynamics, Chinese Academy of Sciences
项目资助者	Hong Kong RGC/GRF ; NSFC ; Hong Kong Polytechnic University ; Key Laboratory of High-temperature Gas Dynamics, Chinese Academy of Sciences
论文分区	一类
力学所作者排名	4
RpAuthor	Zhang, Peng
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/79443
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 DW,Yu DH,Zhang P,et al. Hypergolic ignition modulated by head-on collision, intermixing and convective cooling of binary droplets with varying sizes[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2019,139:475-481.
APA	Zhang DW.,Yu DH.,Zhang P.,袁越明.,岳连捷.,...&范学军.(2019).Hypergolic ignition modulated by head-on collision, intermixing and convective cooling of binary droplets with varying sizes.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,139,475-481.
MLA	Zhang DW,et al."Hypergolic ignition modulated by head-on collision, intermixing and convective cooling of binary droplets with varying sizes".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 139(2019):475-481.

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