本项目将通过数值模拟的方法，结合对太阳活动相关事件的观测数据的分析研究，在磁流体动力学（MHD）的框架内研究日冕磁场演化及太阳爆发事件（包括太阳耀斑、爆发日珥和CME）及其触发机制。将研究爆发前的磁场与等离子体之间的耦合，新浮磁场对CME触发机制的控制作用和日冕磁场的响应，以及这些过程中能量转换、传输、储存和释放；研究在爆发过程中CME的动力学特征及其对各层大气和周围环境扰动产生的各种波，如EUV波、Moreton波及各种射电暴等，研究它们的物理本质、形成机制，射电暴的表现和精细结构。以已有的观测、理论、数值实验结果为基础，设计新的理论研究和数值实验方案，参考新的观测结果，改进实验方案、推动理论研究发展。将理论和数值实验的结果与观测结果对比，以改进和完善理论模型、改善实验程序、提高实验程序运行效率。

We propose an effort to investigate in the MHD framework the evolution and the eruption of the coronal magnetic field, mechanisms of the triggering of the consequent eruption, including solar flares, eruptive prominences, and coronal mass ejections (CMEs). The investigation will be performed, associated with analyzing observational data of the events of interests. We are studying the interaction between the magnetic field and the plasma, which results in the energy conversion, transportation, storage and release. Various wave phenomena auch as EUV, Moreton waves and radio eruptions displayed in the eruption, the evolution in the related magnetic field, as well as the control of the new emerging flux from the photosphere on the triggering mechanism of CME and reaction of coronal magnetic field will be investigated. We will conduct theoretical studies and numerical simulations on the basis of observational results. Via comparing the results of theoretical and numerical simulations with observations, we are going to improve the existing expriment arrangments and theoretical models, and enhance the efficiency of using the computational resources.