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演化研究，重点是模拟磁场矢量的随机漫游路径。利用2 1/2维的模拟，研究人员将解释阿尔芬尼克波动更普遍的球形行为。此外，为了补充他们的混合1/2维模拟，他们将采用纯流体MHD模拟放射状扩展的太阳风，以检查Alfven波的累积演变，从太阳附近的小振幅到远离太阳的大振幅，在那里非线性过程变得重要

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.***