TIME-CORRELATION BETWEEN ENTROPY AND/OR ENERGY DISTRIBUTED INTO SCALES BY 2D WAVELET IN 2D FREE-CONVECTIVE TURBULENCE

被引：4
作者：
TOH, S
机构：
[1] Department of Physics, Faculty of Science, Kyoto University
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1995年 / 64卷 / 03期
关键词：
CONVECTION; TURBULENCE; CASCADE; BOLGIANO-OBUKHOV SCALING; WAVELET; CORRELATION; HARD TURBULENCE;
D O I：
10.1143/JPSJ.64.685
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
To understand how entropy (T-2/2) is cascaded to smaller scales and kinetic energy is transferred to larger scales, temporal evolutions of the entropies and the energies distributed into several scales by 2D wavelet are examined numerically. The correlation coefficient of entropy between adjacent scales has a sharp peak and the delay time giving this peak is scaled as k(-2/5). The direction of energy transfer is not fixed but reverses occasionally between normal and inverse.
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页码：685 / 689
页数：5
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