Wang Xutong, Feng Yantao, Li Shuran, Cao Hong, Zhang Shuo, Liu Zhen, Pei Yanliang, Zhu Weidong, Song Xiaowen, Ke Yinglin, Yan Keping
State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China.
Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China.
Nat Commun. 2025 Jul 5;16(1):6208. doi: 10.1038/s41467-025-61569-5.
The transport of gas bubbles in liquid environments is essential across applications like microfluidics, drug delivery, and energy systems, but achieving stable, high-speed motion remains a challenge. We present an advanced implementation of submerged spark discharge-driven ring bubble generation by leveraging the dynamic interactions and fluid motion at high velocities and accelerations generated by high initial overpressure, achieving high-circulation bubbles that reach initial velocities of 12 m/s, travel 800 mm, which also can be generated in extreme stroke ratios and minimal space. Key features include self-contained movement, collision resilience, and adaptability across media. Scalable and programmable, this method enables precision in bubble manipulation, paving the way for advanced applications in fluid transport, environmental engineering, and biomedical systems.
在微流体、药物输送和能源系统等应用中，液体环境中气泡的传输至关重要，但实现稳定、高速运动仍然是一项挑战。我们通过利用高初始超压产生的高速和加速度下的动态相互作用及流体运动，提出了一种先进的水下火花放电驱动环形气泡生成方法，实现了高循环气泡，其初始速度达到12米/秒，行进距离达800毫米，还可在极端冲程比和最小空间中生成。关键特性包括自主运动、抗碰撞能力以及对不同介质的适应性。这种方法可扩展且可编程，能够实现气泡操纵的精确性，为流体输送、环境工程和生物医学系统中的先进应用铺平了道路。
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