泡破裂引起的水池跳跃和喷气式打印
Wenge Huang1, Mohammad Shamsodini Lori1, Anchenyi Yang2
1Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA, USA.
Nature communications
|February 26, 2026
概括
研究人员通过使用泡爆破,从超水表面跳出厘米尺度的水池. 这种方法克服了毛细血管长度的限制,为滴滴操纵和增材制造提供了新的可能性.
科学领域:
- 物理 物理学 物理
- 流体动力学 流体动力学
- 材料科学 材料科学 材料科学
背景情况:
- 自行式滴滴跳跃对于表面清洁和发电等应用至关重要.
- 滴滴大小受到重力的限制,这对较大的尺度 (在水中超过2.7毫米) 构成挑战.
研究的目的:
- 为了克服滴滴跳跃的毛细血管长度限制.
- 为了使厘米尺度的水池能够被动跳跃.
主要方法:
- 利用在超水表面上被拖累的气泡的破裂.
- 分析气泡爆发引起的毛细血管波对滴滴动态的影响.
主要成果:
- 实现了前所未有的厘米级水池跳跃.
- 气泡爆发的毛细血管波增强了动量转移 (>90%的转换).
- 跳跃高度尺度与泡半径成正方形.
结论:
- 泡破裂机制打破了滴滴跳跃的毛细血管长度限制.
- 为增材制造中滴滴激活和颗粒打印提供了一种新的策略.
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