Modelling of Electrowetting-Induced Droplet Detachment and Jumping over Topographically Micro-Structured Surfaces
| Autor: | Athanasios G. Papathanasiou, Alexandros G. Sourais |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Microfluidics 02 engineering and technology Substrate (electronics) droplet detachment 010402 general chemistry medicine.disease_cause micro-structured surfaces 01 natural sciences Article Physics::Fluid Dynamics Jumping TJ1-1570 medicine Mechanical engineering and machinery Electrical and Electronic Engineering Mechanical Engineering Solid surface numerical modelling electrowetting Mechanics 021001 nanoscience & nanotechnology 0104 chemical sciences Control and Systems Engineering Heat transfer Electrowetting 0210 nano-technology |
| Zdroj: | Micromachines, Vol 12, Iss 592, p 592 (2021) Micromachines Volume 12 Issue 6 |
| ISSN: | 2072-666X |
| DOI: | 10.3390/mi12060592 |
| Popis: | Detachment and jumping of liquid droplets over solid surfaces under electrowetting actuation are of fundamental interest in many microfluidic and heat transfer applications. In this study we demonstrate the potential capabilities of our continuum-level, sharp-interface modelling approach, which overcomes some important limitations of convectional hydrodynamic models, when simulating droplet detachment and jumping dynamics over flat and micro-structured surfaces. Preliminary calculations reveal a considerable connection between substrate micro-topography and energy efficiency of the process. The latter results could be extended to the optimal design of micro-structured solid surfaces for electrowetting-induced droplet removal in ambient conditions. |
| Databáze: | OpenAIRE |
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