The Sound Produced by a Dripping Tap is Driven by Resonant Oscillations of an Entrapped Air Bubble.
The Sound Produced by a Dripping Tap is Driven by Resonant Oscillations of an Entrapped Air Bubble.
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DOI：
10.1038/s41598-018-27913-0
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发表时间：
2018-06-22
影响因子：
4.6
通讯作者：
Jordan P
中科院分区：
文献类型：
--
作者：
Phillips S;Agarwal A;Jordan P
本文详细研究了水滴撞击液体表面（例如从滴水的水龙头中滴落的水滴）所产生的特征性“叮当”声。现代高速视频和音频捕获技术首次应用于此问题。研究水下声音产生的先前文献已经得到验证，其中水面以上和水下的关键声音产生特征被证实是小的水下气泡的夹带。记录的声音频率已被证明与夹带的气泡的理论自然振荡频率一致，确认这是特征“叮当”声的驱动器。这是第一次在录像中直接观察到夹带气泡的这些振荡。对水下混响影响的研究表明，空气中的声场并不像之前假设的那样简单地是通过水-空气界面传播的水下场。另一种假设是，振荡气泡引起水面本身的振荡，给出了水下气泡驱动空气声场的更有效的机制。这个新假设的模型产生良好的协议与实验数据。
This paper details an investigation into the characteristic ‘plink’ sound produced by water droplets impacting a liquid surface, such as those falling from a dripping tap. Modern high-speed video and audio capture techniques have been applied to this problem for the first time. Previous literature investigating the underwater sound produced has been validated, with the key sound producing feature both above and below the water confirmed to be the entrainment of a small underwater air bubble. Recorded sound frequencies have been shown to align with the theoretical natural oscillation frequency of the entrained bubble, confirming this to be the driver of the characteristic ‘plink’ sound. For the first time these oscillations of the entrained bubble have been directly observed on video footage. An investigation into the effect of underwater reverberation showed that the airborne sound field is not simply the underwater field propagating through the water-air interface, as had previously been assumed. An alternative hypothesis is that the oscillating bubble induces oscillations of the water surface itself, giving a more efficient mechanism by which the underwater bubble drives the airborne sound field. A model for this new hypothesis produces good agreement with experimental data.
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影响因子：
2.4
作者：
FRANZ, GJ
通讯作者：
FRANZ, GJ
影响因子：
3.7
作者：
LONGUETHIGGINS, MS
通讯作者：
LONGUETHIGGINS, MS
DOI：
10.1088/0370-1301/68/8/308
发表时间：
1955-01-01
期刊：
PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON SECTION B
影响因子：
--
作者：
RICHARDSON, EG
通讯作者：
RICHARDSON, EG
影响因子：
56.9
作者：
Jones, AT
通讯作者：
Jones, AT
影响因子：
2.4
作者：
Leighton, T. G.
通讯作者：
Leighton, T. G.