Beronov KN
Graduate School of Engineering, Nagoya University, Nagoya 464-3806, Japan.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 2000 Jul;62(1 Pt A):525-31. doi: 10.1103/physreve.62.525.
Direct numerical simulations of two-dimensional (2D) incompressible Navier-Stokes turbulence can model large-scale atmospheric dynamics when driving and dissipation cover wide ranges of length scales. Natural assumptions for the 2D energy balance lead to the robust k(-1) vorticity spectrum (k=2pi, length scale) observed in the atmosphere. Scaling in k space is related to hyperbolicity of large-scale 2D flow in physical space. The mechanism of this scaling has similarities with a recent model of dissipative self-organized criticality.
当驱动和耗散覆盖广泛的长度尺度范围时，二维（2D）不可压缩纳维-斯托克斯湍流的直接数值模拟可以对大规模大气动力学进行建模。二维能量平衡的自然假设导致了在大气中观测到的稳健的k（-1）涡度谱（k = 2π，长度尺度）。k空间中的标度与物理空间中大规模二维流动的双曲性有关。这种标度机制与最近的耗散自组织临界模型有相似之处。
