Influences of Liquid Viscosity and Relative Velocity on the Head-On Collisions of Immiscible Drops
Many researchers have devoted themselves to the collision processes of binary droplets of the same liquid. However, the liquids used in their study were limited, and the phase diagram of the collision outcome was depicted in terms of the Weber and the non-dimensional impact parameter. In this resear...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/22/8544 |
| _version_ | 1827644561798725632 |
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| author | Jiaqing Chang Rongchang Xu Jinsheng Cui Qiaolin Song Teng Shen |
| author_facet | Jiaqing Chang Rongchang Xu Jinsheng Cui Qiaolin Song Teng Shen |
| author_sort | Jiaqing Chang |
| collection | DOAJ |
| description | Many researchers have devoted themselves to the collision processes of binary droplets of the same liquid. However, the liquids used in their study were limited, and the phase diagram of the collision outcome was depicted in terms of the Weber and the non-dimensional impact parameter. In this research, the variety of liquid was broadened, and the phase diagram characterized by the Weber number and the Ohnesorge number for head-on collisions of immiscible drops was provided. First, a ternary flow model of binary collision of immiscible drops in quiescent ambient air was proposed. Second, the three-phase fluid interface was tracked and updated by iterating the VOF (Volume of Fluid) functions. The flow field was also updated with the PISO (Pressure-Implicit with Splitting of Operators) algorithm. Finally, the effects of the impact velocity and the viscosities of the liquids on the deformation degree of droplets were analyzed. |
| first_indexed | 2024-03-09T18:21:19Z |
| format | Article |
| id | doaj.art-2e08571197d24b9f8e51d9d2e7d1b1ca |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T18:21:19Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-2e08571197d24b9f8e51d9d2e7d1b1ca2023-11-24T08:14:46ZengMDPI AGEnergies1996-10732022-11-011522854410.3390/en15228544Influences of Liquid Viscosity and Relative Velocity on the Head-On Collisions of Immiscible DropsJiaqing Chang0Rongchang Xu1Jinsheng Cui2Qiaolin Song3Teng Shen4School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, ChinaSchool of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, ChinaMany researchers have devoted themselves to the collision processes of binary droplets of the same liquid. However, the liquids used in their study were limited, and the phase diagram of the collision outcome was depicted in terms of the Weber and the non-dimensional impact parameter. In this research, the variety of liquid was broadened, and the phase diagram characterized by the Weber number and the Ohnesorge number for head-on collisions of immiscible drops was provided. First, a ternary flow model of binary collision of immiscible drops in quiescent ambient air was proposed. Second, the three-phase fluid interface was tracked and updated by iterating the VOF (Volume of Fluid) functions. The flow field was also updated with the PISO (Pressure-Implicit with Splitting of Operators) algorithm. Finally, the effects of the impact velocity and the viscosities of the liquids on the deformation degree of droplets were analyzed.https://www.mdpi.com/1996-1073/15/22/8544droplet collisionimmiscible dropsencapsulationdroplet deformation |
| spellingShingle | Jiaqing Chang Rongchang Xu Jinsheng Cui Qiaolin Song Teng Shen Influences of Liquid Viscosity and Relative Velocity on the Head-On Collisions of Immiscible Drops Energies droplet collision immiscible drops encapsulation droplet deformation |
| title | Influences of Liquid Viscosity and Relative Velocity on the Head-On Collisions of Immiscible Drops |
| title_full | Influences of Liquid Viscosity and Relative Velocity on the Head-On Collisions of Immiscible Drops |
| title_fullStr | Influences of Liquid Viscosity and Relative Velocity on the Head-On Collisions of Immiscible Drops |
| title_full_unstemmed | Influences of Liquid Viscosity and Relative Velocity on the Head-On Collisions of Immiscible Drops |
| title_short | Influences of Liquid Viscosity and Relative Velocity on the Head-On Collisions of Immiscible Drops |
| title_sort | influences of liquid viscosity and relative velocity on the head on collisions of immiscible drops |
| topic | droplet collision immiscible drops encapsulation droplet deformation |
| url | https://www.mdpi.com/1996-1073/15/22/8544 |
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