| Dynamic characteristics of droplets impacting an inclined wall based on a front-tracking method | |
Zhang, Ying1; Zhao, Shuting1; Liu, Yao1 ; Tu, Yuwei1; Ke, Zhaoqing1; Tian, Yuan1,2; Lu M(卢敏)3
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| Corresponding Author | Ke, Zhaoqing([email protected]) ; Tian, Yuan([email protected]) ; Lu, Min([email protected]) |
| Source Publication | PHYSICS OF FLUIDS
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| 2024-05-01 | |
| Volume | 36Issue:5Pages:16 |
| ISSN | 1070-6631 |
| Abstract | In the current study, the dynamic characteristics of droplets impacting a hydrophilic/hydrophobic inclined wall are investigated using the front-tracking method. The morphological and kinematic features of the droplets are examined across various contact angles ( theta), low Weber numbers ( We <= 10), and inclination angles ( alpha). A sequence of events, including deposition, spreading, contraction, rebound, and subsequent re-spreading, is observed when a droplet impacts a hydrophobic wall, according to the results. The droplet exhibits both a small dimensionless spreading area ( A *) and significant fluctuation, along with a noticeable slip on the wall. As W e increases, the spread and rebound effects become more pronounced, and the slipping velocity also increases. As alpha increases, the slipping velocity becomes greater, and both A * and the dimensionless tangential spreading diameter ( beta) decrease. When a droplet impacts a hydrophilic wall, continuous deposition, spreading, and a subtle slip with inconspicuous rebound are observed. As W e increases, A * expands at an accelerating rate. Furthermore, the wetting effect of hydrophilic surfaces on droplets cannot be overlooked. Consequently, it also shows that as alpha increases, there is a larger diffusion range along the wall with a longer diffusion film and a larger beta. Such behaviors stand in contrast to a droplet impacting a hydrophobic wall. |
| DOI | 10.1063/5.0211388 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001224542400006 |
| WOS Keyword | MAXIMUM SPREADING FACTOR ; WATER DROPLET ; VISCOUS DROPLETS ; SOLID-SURFACE ; COLLISION ; FLUID ; ANGLE |
| WOS Research Area | Mechanics ; Physics |
| WOS Subject | Mechanics ; Physics, Fluids & Plasmas |
| Funding Project | National Natural Science Foundation of China10.13039/501100001809[52166009] ; National Natural Science Foundation of China10.13039/501100001809[12372246] ; National Natural Science Foundation of China[20232BAB204057] ; Natural Science Foundation of Jiangxi Province |
| Funding Organization | National Natural Science Foundation of China10.13039/501100001809 ; National Natural Science Foundation of China ; Natural Science Foundation of Jiangxi Province |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Ke, Zhaoqing ; Tian, Yuan ; Lu, Min |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/95427 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Nanchang Univ, Sch Adv Mfg, Nanchang 330031, Jiangxi, Peoples R China; 2.De Montfort Univ, Inst Energy & Sustainable Dev IESD, Sch Engn & Sustainable Dev, Leicester LE1 9BH, England; 3.Inst Mech, Chinese Acad Sci, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Ying,Zhao, Shuting,Liu, Yao,et al. Dynamic characteristics of droplets impacting an inclined wall based on a front-tracking method[J]. PHYSICS OF FLUIDS,2024,36,5,:16.Rp_Au:Ke, Zhaoqing, Tian, Yuan, Lu, Min |
| APA | Zhang, Ying.,Zhao, Shuting.,Liu, Yao.,Tu, Yuwei.,Ke, Zhaoqing.,...&卢敏.(2024).Dynamic characteristics of droplets impacting an inclined wall based on a front-tracking method.PHYSICS OF FLUIDS,36(5),16. |
| MLA | Zhang, Ying,et al."Dynamic characteristics of droplets impacting an inclined wall based on a front-tracking method".PHYSICS OF FLUIDS 36.5(2024):16. |
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