Oscillation of liquid drops under gravity: Influence of shape on the resonance frequency
Oscillation of liquid drops under gravity: Influence of shape on the resonance frequency
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DOI：
10.1209/epl/i1999-00371-6
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发表时间：
1999-07-01
期刊：
影响因子：
--
通讯作者：
Suery, M
中科院分区：
文献类型：
--
作者：
Perez, M;Brechet, Y;Suery, M
最近演示的空气动力悬浮技术已被用于研究液滴的共振频率。薄的加压气体层支撑液滴，避免与环境接触。由于外部引力场的存在，测量到的频率与经典球形液滴模型预测的频率不同。一个椭球形已被引入到考虑到表面和引力能量之间的竞争。这个模型的结果是在很好的协议与实验中的体积，以及密度和表面能，振荡频率的依赖性。
A recently demonstrated technique of aerodynamic levitation has been used to study the resonance frequency of liquid droplets. A thin pressurized gas layer supports the droplet avoiding any contact with the environment. Due to the external gravitational field, the measured frequency is different from the one predicted Ly the classical models for a spherical drop. An ellipsoidal shape has been introduced to take into account the competition between surface and gravitational energies. Results of this model are in good agreement with experiments in terms of volume, as well as density and surface energy, dependence of the oscillation frequency.