Effect of Eccentric Distance on Successive Dual-droplet Impacting a Super-hydrophobic Tube
Droplet impact is a common but significant phenomenon in industry. The CLSVOF (coupled level set and volume-of-fluid) method is used to numerically study the successive dual-droplet impacting a super-hydrophobic tube. For the impact velocity of 1.0 m/s, the effect of the eccentric distance on dynami...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2021-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/75/e3sconf_edep2021_01002.pdf |
| _version_ | 1819122934042591232 |
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| author | Wang Kaimin Chen Han Liu Jiawei Ge Hongyu Liu Hongsheng Liu Xiaohua |
| author_facet | Wang Kaimin Chen Han Liu Jiawei Ge Hongyu Liu Hongsheng Liu Xiaohua |
| author_sort | Wang Kaimin |
| collection | DOAJ |
| description | Droplet impact is a common but significant phenomenon in industry. The CLSVOF (coupled level set and volume-of-fluid) method is used to numerically study the successive dual-droplet impacting a super-hydrophobic tube. For the impact velocity of 1.0 m/s, the effect of the eccentric distance on dynamic characteristics is analysed, the corresponding eccentric distances are 0.5, 1.0 and 2.0, respectively. In addition, the break-up during rebound is analysed with velocity field and pressure nephogram. Results show that, the eccentric distance hinders the spread during the initial period of spreading. With the increase in eccentric distance, more liquid gathers at the eccentric side and the liquid film might rebound easily without break-up under the same impact velocity. The break-up during rebound mainly depends on the local airflow and pressure difference. The high-pressure zone near the solid-liquid interface moves towards the eccentric side with the increase in eccentric distance. |
| first_indexed | 2024-12-22T07:00:20Z |
| format | Article |
| id | doaj.art-8b5db76420d74aa18622b17c57dc5028 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-22T07:00:20Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-8b5db76420d74aa18622b17c57dc50282022-12-21T18:34:49ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012990100210.1051/e3sconf/202129901002e3sconf_edep2021_01002Effect of Eccentric Distance on Successive Dual-droplet Impacting a Super-hydrophobic TubeWang KaiminChen HanLiu JiaweiGe HongyuLiu HongshengLiu XiaohuaDroplet impact is a common but significant phenomenon in industry. The CLSVOF (coupled level set and volume-of-fluid) method is used to numerically study the successive dual-droplet impacting a super-hydrophobic tube. For the impact velocity of 1.0 m/s, the effect of the eccentric distance on dynamic characteristics is analysed, the corresponding eccentric distances are 0.5, 1.0 and 2.0, respectively. In addition, the break-up during rebound is analysed with velocity field and pressure nephogram. Results show that, the eccentric distance hinders the spread during the initial period of spreading. With the increase in eccentric distance, more liquid gathers at the eccentric side and the liquid film might rebound easily without break-up under the same impact velocity. The break-up during rebound mainly depends on the local airflow and pressure difference. The high-pressure zone near the solid-liquid interface moves towards the eccentric side with the increase in eccentric distance.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/75/e3sconf_edep2021_01002.pdf |
| spellingShingle | Wang Kaimin Chen Han Liu Jiawei Ge Hongyu Liu Hongsheng Liu Xiaohua Effect of Eccentric Distance on Successive Dual-droplet Impacting a Super-hydrophobic Tube E3S Web of Conferences |
| title | Effect of Eccentric Distance on Successive Dual-droplet Impacting a Super-hydrophobic Tube |
| title_full | Effect of Eccentric Distance on Successive Dual-droplet Impacting a Super-hydrophobic Tube |
| title_fullStr | Effect of Eccentric Distance on Successive Dual-droplet Impacting a Super-hydrophobic Tube |
| title_full_unstemmed | Effect of Eccentric Distance on Successive Dual-droplet Impacting a Super-hydrophobic Tube |
| title_short | Effect of Eccentric Distance on Successive Dual-droplet Impacting a Super-hydrophobic Tube |
| title_sort | effect of eccentric distance on successive dual droplet impacting a super hydrophobic tube |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/75/e3sconf_edep2021_01002.pdf |
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