随着惯性约束聚变研究的不断深入，以及实验室天体物理研究的不断发展，目前国际上对激光等离子体自生磁场的研究越来越重视。本项目拟针对长脉冲激光等离子体自生磁场时空演化特性这一前沿物理问题展开研究。利用自相似方法发展一套准三维的、描述激光与平板靶等离子体相互作用中自生磁场时空演化过程的磁流体动力学模型，以了解激光平板靶等离子体中温度、密度、定标长度、自生磁场的空间分布和演化特性。项目的主要研究内容为：(1) 完善激光与平板靶等离子体相互作用的准三维流体动力学相似模型；(2) 建立驱动激光入射方向空间不均匀时流体动力学相似模型；(3) 建立准三维的、描述激光平板靶等离子体相互作用自生磁场的磁流体动力学模型；(4) 利用模型对激光平板靶等离子体自生磁场及其相关物理过程开展研究。

As the requirement of the inertial confinement fusion (ICF) and the laboratory astrophysics (LAP), the investigation of the spontaneous magnetic fields in the laser plasmas becomes a more and more attractive subject in the world. This project aimed to the investigation of the temporal and spatial characteristic of the spontaneous magnetic fields in the long-pulse laser plasmas on Slab. In order to understand the spatial distribution and temporal evolution of the temperature, density, scaling length and magnetic fields in the plasma, a self-similar method is employed to build a quasi-three-dimensional magnetic hydrodynamics model. There are four main work in this project: firstly, we will improve the quasi-three-dimensional hydrodynamics similar model to describe the interaction between the laser and the plasmas on Slab. Secondly, we will build a hydrodynamics similar model in the condition of the non-uniform spatial distribution of the drive-laser. Thirdly, we will build a quasi-three-dimensional magnetic hydrodynamics model to describe the magnetic fields in the laser plasmas on Slab. Finally，the model will be also use to explored the interesting subject in ICF and LAP.