水滴在支持蒸汽-空气流动中的垂直振荡

IF 1.1 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

Physics of Wave Phenomena Pub Date : 2022-01-10 DOI:10.3103/S1541308X21040038

D. N. Gabyshev, A. A. Fedorets, D. V. Shcherbakov

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引用次数: 0

摘要

一个微观大小的液滴稳定地悬浮在蒸汽-空气流动中，在局部加热的薄水层上向上上升。高速视频记录过程中液滴位置的傅里叶分析揭示了小幅度的高频液滴振荡。本文的研究重点是克服噪声对光谱振荡模式提取的阻碍。分析表明，一些模态与液滴的水平运动有关，而另一些模态与垂直运动有关。简要讨论了这种振荡运动发生的可能的物理原因。除了单个液滴，还考虑由两个或三个液滴组成的小簇。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Vertical Oscillations of Water Droplets in the Supporting Vapour–Air Flow

A microscopic-size droplet levitates steadily in a vapor–air flow rising upward over a locally heated thin water layer. A Fourier analysis of the droplet position during a high-speed video recording revealed small-amplitude high-frequency droplet oscillations. This study focuses on overcoming the noise hindering extraction of oscillatory modes from spectra. The analysis revealed that some modes are associated with the horizontal droplet motion, while the others are due to the vertical motion. Possible physical reasons for the onset of this oscillatory motion are briefly discussed. Along with a single droplet, small clusters consisting of two or three droplets are considered.

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来源期刊

Physics of Wave Phenomena PHYSICS, MULTIDISCIPLINARY-

CiteScore

2.50

自引率

21.40%

发文量

审稿时长

>12 weeks

期刊介绍： Physics of Wave Phenomena publishes original contributions in general and nonlinear wave theory, original experimental results in optics, acoustics and radiophysics. The fields of physics represented in this journal include nonlinear optics, acoustics, and radiophysics; nonlinear effects of any nature including nonlinear dynamics and chaos; phase transitions including light- and sound-induced; laser physics; optical and other spectroscopies; new instruments, methods, and measurements of wave and oscillatory processes; remote sensing of waves in natural media; wave interactions in biophysics, econophysics and other cross-disciplinary areas.