Hydrodynamics of Compound Droplet Flowing in the Curved Minichannel
Based on the volume of fluid (VOF) method, a theoretical model of compound droplet deformation in curved minichannel is developed. The effects of curved angle, continuous phase, radius ratio between the inner and integral droplets, and viscosity of the middle phase are examined to reveal the underly...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2019/5726974 |
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| _version_ | 1832549373617111040 |
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| author | Meimei Sun Miao Zhao Wei Gao |
| author_facet | Meimei Sun Miao Zhao Wei Gao |
| author_sort | Meimei Sun |
| collection | DOAJ |
| description | Based on the volume of fluid (VOF) method, a theoretical model of compound droplet deformation in curved minichannel is developed. The effects of curved angle, continuous phase, radius ratio between the inner and integral droplets, and viscosity of the middle phase are examined to reveal the underlying mechanism of compound droplet deformation. The results indicate that the deformation process of the compound droplets in the curved minichannel can be divided into three stages, namely, the initial stage, the turning stage, and the adjustment stage. Both large curved angle and high capillary number of the continuous phase result in the large shear force and high eccentricity of the compound droplet. However, as the radius ratio increases, the influence of the inner droplet on the deformation of the compound droplet transits from enhancing to suppressing. |
| format | Article |
| id | doaj-art-474cf8c099ef4f3e90ad62be34898d91 |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-474cf8c099ef4f3e90ad62be34898d912025-02-03T06:11:26ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242019-01-01201910.1155/2019/57269745726974Hydrodynamics of Compound Droplet Flowing in the Curved MinichannelMeimei Sun0Miao Zhao1Wei Gao2Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, ChinaKey Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, ChinaKey Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, ChinaBased on the volume of fluid (VOF) method, a theoretical model of compound droplet deformation in curved minichannel is developed. The effects of curved angle, continuous phase, radius ratio between the inner and integral droplets, and viscosity of the middle phase are examined to reveal the underlying mechanism of compound droplet deformation. The results indicate that the deformation process of the compound droplets in the curved minichannel can be divided into three stages, namely, the initial stage, the turning stage, and the adjustment stage. Both large curved angle and high capillary number of the continuous phase result in the large shear force and high eccentricity of the compound droplet. However, as the radius ratio increases, the influence of the inner droplet on the deformation of the compound droplet transits from enhancing to suppressing.http://dx.doi.org/10.1155/2019/5726974 |
| spellingShingle | Meimei Sun Miao Zhao Wei Gao Hydrodynamics of Compound Droplet Flowing in the Curved Minichannel Advances in Condensed Matter Physics |
| title | Hydrodynamics of Compound Droplet Flowing in the Curved Minichannel |
| title_full | Hydrodynamics of Compound Droplet Flowing in the Curved Minichannel |
| title_fullStr | Hydrodynamics of Compound Droplet Flowing in the Curved Minichannel |
| title_full_unstemmed | Hydrodynamics of Compound Droplet Flowing in the Curved Minichannel |
| title_short | Hydrodynamics of Compound Droplet Flowing in the Curved Minichannel |
| title_sort | hydrodynamics of compound droplet flowing in the curved minichannel |
| url | http://dx.doi.org/10.1155/2019/5726974 |
| work_keys_str_mv | AT meimeisun hydrodynamicsofcompounddropletflowinginthecurvedminichannel AT miaozhao hydrodynamicsofcompounddropletflowinginthecurvedminichannel AT weigao hydrodynamicsofcompounddropletflowinginthecurvedminichannel |