Observation of an inverse energy cascade in developed acoustic turbulence in superfluid helium
Observation of an inverse energy cascade in developed acoustic turbulence in superfluid helium
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DOI：
10.1103/physrevlett.101.065303
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发表时间：
2008-08-08
影响因子：
8.6
通讯作者：
McClintock, P. V. E.
中科院分区：
文献类型：
--
作者：
Ganshin, A. N.;Efimov, V. B.;McClintock, P. V. E.
本文报道了在He Ⅱ中观测到的第二声-声湍流中的逆能量级联.它的发作发生在临界驱动能量之上，并伴随着巨浪，这些巨浪构成偶尔出现在海洋表面的流氓波的声学模拟。发展了这一现象的理论，并与实验结果相吻合。
We report observation of an inverse energy cascade in second sound acoustic turbulence in He II. Its onset occurs above a critical driving energy and it is accompanied by giant waves that constitute an acoustic analogue of the rogue waves that occasionally appear on the surface of the ocean. The theory of the phenomenon is developed and shown to be in good agreement with the experiments.