A study of the formation, evolution, and decay of shocks in the heliosphere between 0.5 and 30.0 AU
A study of the formation, evolution, and decay of shocks in the heliosphere between 0.5 and 30.0 AU
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研究 0.5 至 30.0 天文单位之间日光层中激波的形成、演化和衰变
DOI：
10.1029/ja090ia01p00217
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发表时间：
1985
影响因子：
--
通讯作者：
R. S. Steinolfson
中科院分区：
文献类型：
--
作者：
Z. Smith;M. Dryer;R. S. Steinolfson
利用连续正弦变化的速度、密度和温度输入脉冲串的太阳风模拟，研究了0.5-30AU之间共转相互作用区的时空演化。我们展示了(1)众所周知的正向-反向磁流体激波系综的形成，以及(2)它们的相互作用导致高度非线性的“压力”波，最终转变为一组新的但更不规则的正向-反向激波对。由于这些化合物的相互作用，总温度的衰减比经典的稳态绝热径向依赖R−4/3慢得多。
The spatial and temporal evolution of corotating interaction regions is examined between 0.5 and 30 AU using a solar wind simulation with a continuous sinusoidally varying velocity, density, and temperature input pulse train. We show (1) the well-known formation of forward-reverse MHD shock ensembles, followed by (2) their interaction that results in a highly nonlinear “pressure” wave that eventually reforms into a new but more irregular set of forward-reverse shock pairs. As a result of these compound interactions, the overall temperature decays much more slowly than the classical steady state adiabatic radial dependency of R−4/3.