| 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)
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| Corresponding Author | Zhang, Peng([email protected]) |
| Source Publication | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
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| 2019-08-01 | |
| Volume | 139Pages:475-481 |
| ISSN | 0017-9310 |
| Abstract | 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 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000473381300040 |
| WOS Keyword | NITRIC-ACID ; N,N,N',N'-TETRAMETHYLETHYLENEDIAMINE ; COALESCENCE ; SEPARATION |
| WOS Research Area | Thermodynamics ; Engineering ; Mechanics |
| WOS Subject | Thermodynamics ; Engineering, Mechanical ; Mechanics |
| Funding Project | 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 |
| Funding Organization | Hong Kong RGC/GRF ; NSFC ; Hong Kong Polytechnic University ; Key Laboratory of High-temperature Gas Dynamics, Chinese Academy of Sciences |
| Classification | 一类 |
| Ranking | 4 |
| Contributor | Zhang, Peng |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/79443 |
| Collection | 高温气体动力学国家重点实验室 |
| Recommended Citation 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.Rp_Au:Zhang, Peng |
| 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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| Jp2019219.pdf（1528KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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