Imaging of intermittency in ripple-wave turbulence

被引:35
作者
Wright, WB [1 ]
Budakian, R [1 ]
Pine, DJ [1 ]
Putterman, SJ [1 ]
机构
[1] UNIV CALIF LOS ANGELES, DEPT PHYS, LOS ANGELES, CA 90095 USA
关键词
D O I
10.1126/science.278.5343.1609
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The dynamics of a fluid surface filled with high-amplitude ripples were studied with a technique (diffusing light photography) that resolves the height at all locations instantaneously. Even when nonlinearities are strong enough to generate a (Kolmogorov) cascade from long wavelength (where energy is input) to shorter wavelength, the resulting turbulent state contains large coherent spatial structures. The appearance of these structures in a thermal equilibrium state (with the same average energy) would be highly improbable.
引用
收藏
页码:1609 / 1612
页数:4
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