Thickness model for viscous impinging liquid sheets
Ultra-thin liquid sheets generated by impinging two liquid jets are crucial high-repetition-rate targets for laser ion acceleration and ultra-fast physics, and serve widely as barrier-free samples for structural biochemistry. The impact of liquid viscosity on sheet thickness should be comprehended fully to exploit its potential. Here, we demonstrate experimentally that viscosity significantly influences thickness distribution, while surface tension primarily governs shape. We propose a thickness model based on momentum exchange and mass transport within the radial flow, which agrees well with the experiments. These results provide deeper insights into the behaviour of liquid sheets and enable accurate thickness control for various applications, including atomization nozzles and laser-driven particle sources.
Authors
- Bo Wang (ORCID: https://orcid.org/0000-0002-1814-3865)
- Xiaodong Chen (ORCID: https://orcid.org/0000-0001-5530-2637)
- Zhuoyang Song (ORCID: https://orcid.org/0009-0001-9727-7908)
- Zhengxuan Cao (ORCID: https://orcid.org/0000-0002-4554-4058)
- Erjun Wu (ORCID: https://orcid.org/0009-0007-1510-4266)
- Wenjun Ma (ORCID: https://orcid.org/0000-0001-8217-8301)
- Ying Gao (ORCID: https://orcid.org/0000-0002-5912-0248)
- Xuan Liu (ORCID: https://orcid.org/0000-0002-5024-3524)
- Jiarui Zhao
- Ziyang Peng (ORCID: https://orcid.org/0009-0000-3772-5126)
Institutions
- Beijing Institute of Technology (CN)
- Peking University (CN)
- China Academy of Engineering Physics (CN)
- Guangdong Polytechnic of Science and Technology (CN)
- Chinese Academy of Engineering (CN)
- Beijing Advanced Sciences and Innovation Center (CN)
- State Key Laboratory of Nuclear Physics and Technology
Publication Details
- Journal
- Journal of Fluid Mechanics
- Published
- 2025-06-30
- DOI
- https://doi.org/10.1017/jfm.2025.10219
- Citations
- 4
- Primary Topic
- Fluid Dynamics and Heat Transfer
- Type
- article
- Field-Weighted Citation Impact
- 5.34
Funders
- National Science Fund for Distinguished Young Scholars