| On the evolution of n-octane atomization characteristics using an air-assisted intermittent spray method | |
Wu, Hao1,2; Zhang, Fujun1; Zhang, Zhenyu1,2; Wu K(吴坤)3; Fan XJ(范学军)3
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| Corresponding Author | Zhang, Zhenyu([email protected]) |
| Source Publication | FUEL PROCESSING TECHNOLOGY
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| 2022-06-15 | |
| Volume | 231Pages:17 |
| ISSN | 0378-3820 |
| Abstract | In this study, droplet size and velocity of an intermittent air-assisted n-octane spray were measured using a Phase Doppler Particle Analyzer, focusing on the effect of operating parameters on time-resolved droplet behavior and local gas flow characteristics. An electro-magnetically actuated air-assisted injector, which features internal gas liquid premixing upstream and releasing through an annular nozzle, was used to generate intermittent sprays. The sampling time equalization method is employed to examine the time-resolved spray microscopic characteristics with various injection control parameters and spatial sampling positions. The droplet diameter range is found to be generally independent of air injection duration and sampling time while droplet velocity is correlated with these two parameters. A large air injection duration tends to accelerate droplets in the late spray period and leads to an increasing normalized gas flow velocity. Estimation of local gas flow turbulence intensity indicates a prominent radial sampling position dependence due to the rapid attenuation of the gas flow velocity away from the spray axis. A noteworthy finding for this intermittent air-assisted spray is that at 30 mm from the nozzle outlet, the zero point of droplet-gas mean slip velocity shifts toward the nozzle with sampling time. The time bin size employed to divide the sampling time has been proved to exert no influence on the statistical results of transient spray microscopic characteristics. |
| Keyword | Air-assisted spray Droplet size-velocity joint probability density function Sauter Mean Diameter Turbulent intensity Slip velocity |
| DOI | 10.1016/j.fuproc.2022.107231 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000791148500006 |
| WOS Keyword | TWIN-FLUID ATOMIZATION ; VISCOUS-LIQUIDS ; FUEL-INJECTION ; DROPLET SIZE ; PRESSURE ; JET ; PARAMETERS ; DYNAMICS ; FIELD ; LADEN |
| WOS Research Area | Chemistry ; Energy & Fuels ; Engineering |
| WOS Subject | Chemistry, Applied ; Energy & Fuels ; Engineering, Chemical |
| Funding Project | National Natural Science Foundation of China[51806013] ; Foundation research funds of the Ministry of Industry and Information Technology[WDZC-2019-JGKK-02] ; Foundation research funds of the Ministry of Industry and Information Technology[JCKY2019602D018] ; Beijing Institute of Technology Research Fund Program for Young Scholars[2020CX04047] |
| Funding Organization | National Natural Science Foundation of China ; Foundation research funds of the Ministry of Industry and Information Technology ; Beijing Institute of Technology Research Fund Program for Young Scholars |
| Classification | 一类 |
| Ranking | 3+ |
| Contributor | Zhang, Zhenyu |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/89082 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China; 2.Yangtze Delta Reg Acad Beijing Inst Technol, Jiaxing 314011, Zhejiang, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Wu, Hao,Zhang, Fujun,Zhang, Zhenyu,et al. On the evolution of n-octane atomization characteristics using an air-assisted intermittent spray method[J]. FUEL PROCESSING TECHNOLOGY,2022,231:17.Rp_Au:Zhang, Zhenyu |
| APA | Wu, Hao,Zhang, Fujun,Zhang, Zhenyu,吴坤,&范学军.(2022).On the evolution of n-octane atomization characteristics using an air-assisted intermittent spray method.FUEL PROCESSING TECHNOLOGY,231,17. |
| MLA | Wu, Hao,et al."On the evolution of n-octane atomization characteristics using an air-assisted intermittent spray method".FUEL PROCESSING TECHNOLOGY 231(2022):17. |
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| Jp2022FA307_2022_On （14380KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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