| Motion of Droplets in Lyophilic Axially Varying Geometry-Gradient Tubes | |
Xiao ZQ(肖志强); Hu, Xiaoling; Wu D(吴笛) ; Song, Kui
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| Source Publication | LANGMUIR
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| 2023-05-26 | |
| Volume | 39Issue:22Pages:7901-7911 |
| ISSN | 0743-7463 |
| Abstract | Droplet transport occurs frequently in nature and has a wide range of applications. We studied the droplet motion in a lyophilic axially varying geometry-gradient tube (AVGGT). The motion of the AVGGT in two directions-from the large opening side (L) to the small opening side (S) and from S to L-was theoretically and experimentally analyzed. The droplet dynamic behaviors, such as the self-transport behavior and the droplet stuck behavior, are explored from the view points of mechanics and energy. We found that the surface tension force of a three-phase contact line can be either a driving or an impeding force depending on the various droplet geometries in different AVGGTs. An important contributing factor to the self-transport behavior of a droplet moving from L to S in an AVGGT is the bridge liquid force caused by negative pressure inside the droplet, which is always pointing in the direction of S. As a result of experiments, we investigated the relationship between droplet motion and correlated parameters. The theoretical model based on the simplified Navier-Stokes equation was developed to explain the corresponding mechanism of the droplet motion. Additionally, dimensional analysis was carried out for the droplet stuck behavior of a droplet moving from S to L in an AVGGT to investigate the relationship between the droplet stopping location and the correlated parameters and thus obtain the required geometry for the droplet stopping location. |
| DOI | 10.1021/acs.langmuir.3c00746 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001011104400001 |
| WOS Research Area | Chemistry ; Materials Science |
| WOS Subject | Chemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary |
| Funding Organization | National Natural Science Foundation of China [12172320] ; Research Foundation of Education Bureau of Hunan Province [20B558, 20C1756] ; Natural Science Foundation of Hunan Province [2021JJ30642] |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Song, K (corresponding author), Xiangtan Univ, Sch Mech Engn & Mech, Xiangtan 411105, Peoples R China. ; Song, K (corresponding author), Xiangtan Univ, Inst Rheol Mech, Xiangtan 411105, Peoples R China. ; Wu, D (corresponding author), Chinese Acad Sci, Inst Mech, Micrograv Key Lab, Beijing 100190, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/92576 |
| Collection | 微重力重点实验室 |
| Affiliation | 1.{Xiao, Zhiqiang, Hu, Xiaoling, Song, Kui} Xiangtan Univ, Sch Mech Engn & Mech, Xiangtan 411105, Peoples R China 2.{Hu, Xiaoling, Song, Kui} Xiangtan Univ, Inst Rheol Mech, Xiangtan 411105, Peoples R China 3.{Wu, Di} Chinese Acad Sci, Inst Mech, Micrograv Key Lab, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Xiao ZQ,Hu, Xiaoling,Wu D,et al. Motion of Droplets in Lyophilic Axially Varying Geometry-Gradient Tubes[J]. LANGMUIR,2023,39,22,:7901-7911.Rp_Au:Song, K (corresponding author), Xiangtan Univ, Sch Mech Engn & Mech, Xiangtan 411105, Peoples R China., Song, K (corresponding author), Xiangtan Univ, Inst Rheol Mech, Xiangtan 411105, Peoples R China., Wu, D (corresponding author), Chinese Acad Sci, Inst Mech, Micrograv Key Lab, Beijing 100190, Peoples R China. |
| APA | 肖志强,Hu, Xiaoling,吴笛,&Song, Kui.(2023).Motion of Droplets in Lyophilic Axially Varying Geometry-Gradient Tubes.LANGMUIR,39(22),7901-7911. |
| MLA | 肖志强,et al."Motion of Droplets in Lyophilic Axially Varying Geometry-Gradient Tubes".LANGMUIR 39.22(2023):7901-7911. |
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| Jp2023Fa284.pdf（4581KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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