Capillary wave turbulence experiments in microgravity

被引：12

作者：

Berhanu, M. ^{[1
]}

Falcon, E. ^{[1
]}

Michel, G. ^{[2
,3
]}

Gissinger, C. ^{[2
]}

Fauve, S. ^{[2
]}

机构：

[1] Univ Paris Diderot, CNRS, UMR 7057, Lab Mat & Syst Complexes, 10 Rue Alice Domon & Leonie, Paris, France

[2] Univ Paris Diderot, Sorbonne Univ, Univ PSL, CNRS,Lab Phys,Ecole Normale Super, Paris, France

[3] Sorbonne Univ, CNRS, UMR 7190, Inst Jean Le Rond dAlembert, F-75005 Paris, France

来源：

EPL | 2019年 / 128卷 / 03期

关键词：

D O I：

10.1209/0295-5075/128/34001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the FLUIDICS (Fluid Dynamics in Space) experiment in the International Space Station, turbulence of capillary waves at the air-water interface is experimentally investigated in weightlessness. Capillary waves are excited in a spherical container partially filled with water and undergoing sinusoidal or random oscillations. The fluctuations of the interface, recorded with two capacitive probes are analyzed by means of the frequency power spectrum of wave elevation. For high enough forcing amplitudes, we report power-law spectra with exponents close to the prediction of weak wave turbulence theory. However, in this experiment the free-surface steepness is not small compared to 1 and thus the investigated regimes correspond to strongly nonlinear wave turbulence. Copyright (C) EPLA, 2020.

引用

页数：7

共 32 条

[11] Energy flux measurement from the dissipated energy in capillary wave turbulence [J].