Simulation Study of Arc-Shaped Alfven Waves and Rotational Discontinuities in the Solar Wind

PI将进行为期三年的非线性波动演化研究，集中于模拟磁场矢量的随机徘徊路径。使用2 1/2维模拟，研究人员将解释更普遍的阿尔文波动的球形行为。 此外，补充他们的混合1 1/2维模拟，他们将采用径向膨胀太阳风的纯流体MHD模拟来研究Alfven波从太阳附近的小振幅到远离太阳的大振幅的累积演化，其中非线性过程变得显着。

The PIs will perform a three-year study of nonlinear wave evolution, concentrating on modeling the magnetic field vector's random wandering path. Using 2 1/2 dimensional simulations, the investigators will explain the more prevalent spherical behavior of Alfvenic fluctuations. Moreover, complement their hybrid 1 1/2 dimensional simulations, they will employ a pure fluid MHD simulation of a radially expanding solar wind to examine the cumulative evolution of Alfven waves from small amplitudes near the Sun to large amplitudes further from the Sun, where nonlinear processes become significant.***