Interface Fragmentation via Horizontal Vibration: A Pathway to Scalable Monodisperse Emulsification
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866914471863123968 |
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| author | Piao, Linfeng Juel, Anne |
| author_facet | Piao, Linfeng Juel, Anne |
| contents | We present a scalable method for producing monodisperse micro-scale emulsions in a rectangular container holding two stably stratified layers of immiscible liquids by applying horizontal vibration. This setup enables the excitation of a single line of ordered Faraday waves along each end wall when viscous forces dominate interfacial dynamics. Our experiments and theoretical modelling show that the critical non-dimensional acceleration for the breakup of the wave tips in a regular array of droplets scales as $N^{-1/2} ω^{*3/2}$, where $N$ is the kinematic viscosity ratio and $ω^{*}$ is the frequency of forcing on the viscous-capillary scale. The droplet diameter can be easily tuned by varying the forcing parameters, and the number of droplets generated per cycle is proportional to the width of the container. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2506_07742 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Interface Fragmentation via Horizontal Vibration: A Pathway to Scalable Monodisperse Emulsification Piao, Linfeng Juel, Anne Soft Condensed Matter Fluid Dynamics We present a scalable method for producing monodisperse micro-scale emulsions in a rectangular container holding two stably stratified layers of immiscible liquids by applying horizontal vibration. This setup enables the excitation of a single line of ordered Faraday waves along each end wall when viscous forces dominate interfacial dynamics. Our experiments and theoretical modelling show that the critical non-dimensional acceleration for the breakup of the wave tips in a regular array of droplets scales as $N^{-1/2} ω^{*3/2}$, where $N$ is the kinematic viscosity ratio and $ω^{*}$ is the frequency of forcing on the viscous-capillary scale. The droplet diameter can be easily tuned by varying the forcing parameters, and the number of droplets generated per cycle is proportional to the width of the container. |
| title | Interface Fragmentation via Horizontal Vibration: A Pathway to Scalable Monodisperse Emulsification |
| topic | Soft Condensed Matter Fluid Dynamics |
| url | https://arxiv.org/abs/2506.07742 |