太阳风膨胀模型建立及磁场影响研究

Establishment of solar wind expansion model and magnetic filed impact

太阳风是从太阳大气射出的高速等离子体流,其加速机制目前还未被完全得到解释。从流体力学及电磁场理论麦克斯韦方程组角度出发,研究太阳风速度变化的问题,突出研讨磁场对太阳风能量输入问题的重要性。首先,结合流体力学流体流动的动量方程提出等温日冕膨胀模型理论,用以验证宁静太阳风的加速机制;然后,分析太阳磁场变化对太阳风速度和能量输入情况的影响;最后,利用实际观测数据进行模拟,验证太阳风膨胀模型的可行性及太阳风磁场的变化。

The acceleration mechanism of solar plasma still can＇ t be explained completely. We examined the velocity change of solar wind from a fluid mechanics and Maxwell equation of electromagnetism perspective. Unlike previous re- search, this study emphasized the importance of magnetic field interference in the study of the solar wind energy. The iso- thermal corona expansion theory is proposed to test acceleration mechanism of quiet solar wind and solar magnetic filed is also discussed.