The direction of the microjet produced by the collapse of a cavitation bubble locatedin between a wall and a free surface

利用可解释人工智能提取空化位置对激光诱导微射流速度的影响

The effects of cavitation position on the velocity of a laser-induced microjet extracted using explainable artificial intelligence

本研究利用可解释人工智能（XAI）分析空化气泡图像，发现空化位置对激光诱导微射流速度有显著影响，靠近激光焦点的空化加速效应更强。

Effects of pressure impulse and peak pressure of a shock wave on microjet velocity and the onset of cavitation in a microchannel

The development of needle-free injection systems utilizing high-speed microjets is of great importance to world healthcare. It is thus crucial to control the microjets, which are often induced by underwater shock waves. In this contribution from fluid-mechanics point of view, we experimentally investigate the effect of a shock wave on the velocity of a free surface (microjet) and underwater cavitation onset in a microchannel, focusing on the pressure impulse and peak pressure of the shock wave. The shock wave used had a non-spherically-symmetric peak pressure distribution and a spherically sym…

Mechanics of collapsing cavitation bubbles

A brief survey is given of the dynamical phenomena accompanying the collapse of cavitation bubbles. The discussion includes shock waves, microjets and the various ways in which collapsing bubbles produce damage.

由具有交替润湿性图案的通道调控的空化诱导微射流

Cavitation-induced microjets tuned by channels with alternating wettability patterns

本研究通过在亲水玻璃毛细管上涂覆疏水条带改变弯月面曲率，调控空化诱导微射流的轨迹与破裂特性，发现几何形状与涂层组合能显著影响射流特征及一致性。

壁面附近气泡溃灭。第1部分：冲击波与微射流对壁面压力影响的实验研究

Bubble collapse near a wall. Part 1: An experimental study on the impact of shock waves and microjet on the wall pressure

本文通过激光诱导气泡实验，结合高速成像、纹影成像和压力传感器，系统研究了不同无量纲距离γ下壁面附近气泡溃灭产生的冲击波与微射流对壁面压力的影响，揭示了空化侵蚀机制。

Luminescence from cavitation bubbles deformed in uniform pressure gradients

Presented here are observations that demonstrate how the deformation of millimetric cavitation bubbles by a uniform pressure gradient quenches single collapse luminescence. Our innovative measurement system captures a broad luminescence spectrum (wavelength range 300-900 nm) from the individual collapses of laser-induced bubbles in water. By varying the bubble size, driving pressure and the perceived gravity level aboard parabolic flights, we probed the limit from aspherical to highly spherical bubble collapses. Luminescence was detected for bubbles of maximum radii within the previously uncov…