Numerical investigation of water droplet collision dynamics on moving surfaces
Abstract This work presents a comprehensive numerical study on the dynamics of droplet collision on a moving solid surface with different wettabilities. Results of numerical simulations for the cases of both stationary and moving substrates are compared with the corresponding experimental results. T...
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Nature Portfolio
2025-02-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-87937-1 |
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| author | Shu Tian Atena Ghaderi |
| author_facet | Shu Tian Atena Ghaderi |
| author_sort | Shu Tian |
| collection | DOAJ |
| description | Abstract This work presents a comprehensive numerical study on the dynamics of droplet collision on a moving solid surface with different wettabilities. Results of numerical simulations for the cases of both stationary and moving substrates are compared with the corresponding experimental results. The spreading of droplets, lamella formation, and recoil in dependence on droplet size, impact velocity, and motion of the surface are discussed in the present work. The results demonstrate that with large drops and high surface velocities, droplet deformation is strongly asymmetric due to the competition between normal and tangential forces. Also, detachment of the lamella becomes stronger by increasing the speed of the surface; hence, there is only a little recoiling contact with increased energy dissipation. In contrast, the smaller droplets had a quite stable spreading with no lamella breakup at all, which is evidence again for the decisive action of droplet size and kinetic energy in dynamics after impact. Among the other manifestations, the present study points out the formation of a central splash in the larger droplets. These facts increase awareness in droplet dynamics concerning moving surfaces with applications in optimizing the efficiency of industrial processes like inkjet printing, spray cooling, and surface coating technologies. |
| format | Article |
| id | doaj-art-2d789fd9a7ee4d0fb1514c930f9d46d0 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-2d789fd9a7ee4d0fb1514c930f9d46d02025-02-09T12:34:35ZengNature PortfolioScientific Reports2045-23222025-02-0115111510.1038/s41598-025-87937-1Numerical investigation of water droplet collision dynamics on moving surfacesShu Tian0Atena Ghaderi1Department of Physics and Electronic Information Engineering, Lyuliang UniversityDepartment of Mechanical Engineering, University College of RouzbahanAbstract This work presents a comprehensive numerical study on the dynamics of droplet collision on a moving solid surface with different wettabilities. Results of numerical simulations for the cases of both stationary and moving substrates are compared with the corresponding experimental results. The spreading of droplets, lamella formation, and recoil in dependence on droplet size, impact velocity, and motion of the surface are discussed in the present work. The results demonstrate that with large drops and high surface velocities, droplet deformation is strongly asymmetric due to the competition between normal and tangential forces. Also, detachment of the lamella becomes stronger by increasing the speed of the surface; hence, there is only a little recoiling contact with increased energy dissipation. In contrast, the smaller droplets had a quite stable spreading with no lamella breakup at all, which is evidence again for the decisive action of droplet size and kinetic energy in dynamics after impact. Among the other manifestations, the present study points out the formation of a central splash in the larger droplets. These facts increase awareness in droplet dynamics concerning moving surfaces with applications in optimizing the efficiency of industrial processes like inkjet printing, spray cooling, and surface coating technologies.https://doi.org/10.1038/s41598-025-87937-1Droplet collisionMoving surfacesImpact dynamicsSpreading behaviorLamella formation |
| spellingShingle | Shu Tian Atena Ghaderi Numerical investigation of water droplet collision dynamics on moving surfaces Scientific Reports Droplet collision Moving surfaces Impact dynamics Spreading behavior Lamella formation |
| title | Numerical investigation of water droplet collision dynamics on moving surfaces |
| title_full | Numerical investigation of water droplet collision dynamics on moving surfaces |
| title_fullStr | Numerical investigation of water droplet collision dynamics on moving surfaces |
| title_full_unstemmed | Numerical investigation of water droplet collision dynamics on moving surfaces |
| title_short | Numerical investigation of water droplet collision dynamics on moving surfaces |
| title_sort | numerical investigation of water droplet collision dynamics on moving surfaces |
| topic | Droplet collision Moving surfaces Impact dynamics Spreading behavior Lamella formation |
| url | https://doi.org/10.1038/s41598-025-87937-1 |
| work_keys_str_mv | AT shutian numericalinvestigationofwaterdropletcollisiondynamicsonmovingsurfaces AT atenaghaderi numericalinvestigationofwaterdropletcollisiondynamicsonmovingsurfaces |