流体接口的无接触变形由声波辐射压力引起的
Félix Sisombat1, Thibaut Devaux2, Lionel Haumesser2
1GREMAN UMR 7347, Université de Tours, INSA CVL, CNRS, 41000, Blois, France. felix.sisombat@univ-tours.fr.
Scientific reports
|September 7, 2023
概括
研究人员使用声波辐射压力演示可编程表面成型. 这种无接触方法可以实时控制可调光学和声学元表面的流体接口.
科学领域:
- 物理 物理学 物理
- 流体动力学 流体动力学
- 声学 声学 在声学方面
背景情况:
- 可逆和可编程的表面成型对于可调光学和声学元表面等先进应用至关重要.
- 声波辐射压力为流体接口的实时变形提供了一种非接触式方法.
研究的目的:
- 通过实验和数值来描述由声波辐射压力引起的流体界面变形的时空特性.
- 通过局部超声波激发,研究在水空界面的表面突起的按需定制.
主要方法:
- 使用局部超声波激发来诱导和控制水空气界面上的变形.
- 使用实验测量和数值模拟来分析诱导表面变形的时空特征.
主要成果:
- 通过控制输入声压场形状,证明了在空间和时间中定制表面突起的能力.
- 观察到水面变形的实验测量和模拟结果之间存在密切一致.
- 通过调整超声波激发参数,展示了突起成各种时空分布的形状.
结论:
- 声波辐射压力为流体接口的可编程成型提供了一种可行的方法.
- 这种技术使得在流体接口上能够创建新的可编程的空间和时间依赖的网格.
- 这些发现为设计先进的光学和声学设备开辟了新的途径.
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