| Atomization of misaligned impinging liquid jets | |
Zhang, Chenwei1; Zhang ZY(张振宇)2; Wu K(吴坤)2; Xia, Xi3; Fan XJ(范学军)2,4
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| 通讯作者 | Wu, Kun(wukun@imech.ac.cn) |
| 发表期刊 | PHYSICS OF FLUIDS
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| 2021-09-01 | |
| 卷号 | 33期号:9页码:15 |
| ISSN | 1070-6631 |
| 摘要 | This study numerically investigated the atomization characteristics of misaligned impinging jets, with the misalignment ratio e ranging between 0 and 0.2, by employing the volume of fluid method with an adaptive mesh refinement algorithm. The results show that the droplet Sauter mean diameter varies non-monotonically with e and reaches the minimum value, which implies the best atomization performance, at e = 0.1 under operating conditions concerned in the present work. Meanwhile, the moderately misaligned impingement also leads to a more uniform spatial dispersion of the atomized fragments and droplets. These unique spray behaviors can be attributed to the instability and disintegration of the liquid sheet formed upon jet impingement, as evident from the non-monotonic dependence of the breakup length of the liquid sheet on the misalignment ratio e . Analyses on the velocity fluctuation and vorticity distribution further suggest that the misalignment alters the intrinsic instability mode of the liquid sheet by introducing a lateral stretch effect, which diverts the peak streamwise momentum away from the centerline. The current finding indicates that misalignment tuning could be a promising optimization and control technique in propellant mixing and atomization.& nbsp;Published under an exclusive license by AIP Publishing. |
| 关键词 | AMP Exception AMP Exception |
| DOI | 10.1063/5.0061981 |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000717658800003 |
| 关键词[WOS] | ADAPTIVE SOLVER ; BREAKUP ; IMPINGEMENT ; SKEWNESS ; DYNAMICS ; LAMINAR ; PAIR |
| WOS研究方向 | Mechanics ; Physics |
| WOS类目 | Mechanics ; Physics, Fluids & Plasmas |
| 资助项目 | National Natural Science Foundation of China[12072194] ; National Natural Science Foundation of China[51806013] ; Ministry of Industry and Information Technology[JCKY2019602D018] ; Ministry of Industry and Information Technology[WDZC-2019JGKK-02] ; Shanghai Sailing Program[20YF1420600] ; Beijing Institute of Technology Research Fund Program for Young Scholars[2020CX04047] |
| 项目资助者 | National Natural Science Foundation of China ; Ministry of Industry and Information Technology ; Shanghai Sailing Program ; Beijing Institute of Technology Research Fund Program for Young Scholars |
| 论文分区 | 一类/力学重要期刊 |
| 力学所作者排名 | 1 |
| RpAuthor | Wu, Kun |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/87994 |
| 专题 | 高温气体动力学国家重点实验室 |
| 作者单位 | 1.Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; 3.Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China; 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Chenwei,Zhang ZY,Wu K,et al. Atomization of misaligned impinging liquid jets[J]. PHYSICS OF FLUIDS,2021,33,9,:15. |
| APA | Zhang, Chenwei,张振宇,吴坤,Xia, Xi,&范学军.(2021).Atomization of misaligned impinging liquid jets.PHYSICS OF FLUIDS,33(9),15. |
| MLA | Zhang, Chenwei,et al."Atomization of misaligned impinging liquid jets".PHYSICS OF FLUIDS 33.9(2021):15. |
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| Atomization of misal（15401KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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