MAGNETOHYDRODYNAMIC SIMULATION OF THE RADIAL EVOLUTION AND STREAM STRUCTURE OF SOLAR-WIND TURBULENCE

被引：83
|
作者：
ROBERTS, DA [1 ]
GHOSH, S [1 ]
GOLDSTEIN, ML [1 ]
MATTHAEUS, WH [1 ]
机构：
[1] UNIV DELAWARE,BARTOL RES INST,NEWARK,DE 19716
来源：
PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 27期
关键词：
D O I：
10.1103/PhysRevLett.67.3741
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present a unified interpretation of observations of interplanetary fluctuations in terms of nearly incompressible magnetohydrodynamics. Incompressive effects explain the rapid evolution of turbulence in slow wind containing the heliospheric current sheet. The relative constancy of the spectrum of "inward propagating" fluctuations compared to the rapid decline in "outward" fluctuations results from incompressive spectral transfer combined with strong dissipation of the outward fluctuations. Secondary compressive effects account for nearly pressure-balanced structures and the density fluctuation levels.
引用
收藏
页码：3741 / 3744
页数：4
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