NEW INVARIANT FOR DRIFT TURBULENCE

NEW INVARIANT FOR DRIFT TURBULENCE
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DOI:
10.1016/0375-9601(91)90105-h
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发表时间:
1991-01-21
期刊:
影响因子:
2.6
通讯作者:
ZAKHAROV, VE
ZAKHAROV, VE
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
BALK, AM;NAZARENKO, SV;ZAKHAROV, VE

文献摘要

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发现了两种情况下漂移波(或Rossby波)湍流的新不变量:(1)纬向流和(2)大尺度范围。这个不变量被证明是唯一的附加不变量(除了能量和动量)。这样就得到了具有有限个附加不变量的波系统的第一个例子。导出了一个新的Kolmogorov型谱,它包含了附加不变量通过尺度的通量,并分析了通量在k-不变量空间中的结构。
A new invariant for drift wave (or Rossby wave) turbulence in two cases, (1) in zonal flow and (2) in the large scale range, is discovered. This invariant is proved to be a unique additional invariant (besides energy and momentum). Thus the first examples of wave systems with a finite number of additional invariants are obtained. A new Kolmogorov-type spectrum with the flux of the additional invariant through the scales is derived and the structure of fluxes in the k-space of invariants is analyzed.