Phase field modelling of the growth and detachment of bubbles in a hydrogen electrolyzer
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866911324734226432 |
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| author | Uriarte, Carlos Fontelos, Marco A. Arrayás, Manuel |
| author_facet | Uriarte, Carlos Fontelos, Marco A. Arrayás, Manuel |
| contents | We develop and implement numerically a phase field model for the growth and detachment of a gas bubble resting on an electrode and being filled with hydrogen produced by water electrolysis. The bubble is surrounded by a viscous liquid, has a prescribed static contact angle and is also subject to gravitational forces. We compute, as a function of the static contact angle, the time at which the bubble detaches from the substrate and what volume it has at that time. We also investigate de dependence of the detachment time on other parameters such as the applied voltage and the hydrogen ion concentration at the fluid bulk. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_16585 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Phase field modelling of the growth and detachment of bubbles in a hydrogen electrolyzer Uriarte, Carlos Fontelos, Marco A. Arrayás, Manuel Soft Condensed Matter Materials Science Fluid Dynamics We develop and implement numerically a phase field model for the growth and detachment of a gas bubble resting on an electrode and being filled with hydrogen produced by water electrolysis. The bubble is surrounded by a viscous liquid, has a prescribed static contact angle and is also subject to gravitational forces. We compute, as a function of the static contact angle, the time at which the bubble detaches from the substrate and what volume it has at that time. We also investigate de dependence of the detachment time on other parameters such as the applied voltage and the hydrogen ion concentration at the fluid bulk. |
| title | Phase field modelling of the growth and detachment of bubbles in a hydrogen electrolyzer |
| topic | Soft Condensed Matter Materials Science Fluid Dynamics |
| url | https://arxiv.org/abs/2508.16585 |