针对ICF(Inertial Confinement Fusion)空腔靶大变形问题。发展了九点网格重构方法.拓展后的九点网格重构方法,保留了九点网格重构方法的基本特征(逼近椭圆型或抛物型方程,并具有一维球对称性),而且包含更多形式的九点网格重构方法,扩展了实际问题的使用需要.最后LARED-H程序采用ALE(Arbitrary Lagrangian—Eulerian)方法,对空腔靶进行数值模拟,给出了合理的物理图像.
In order to untangle serious distortion in a hohlraum for ICF(Inertial Confinement Fusion), a nine-point rezone strategy is developod. The scheme is approximate to an elliptic or a parabolic equation, and preserves spherical symmetry. The scheme includes several forms of the nine-point rezone scheme according to different requirement in practical problems. The ALE (Arbitrary Lagrangian-Eulerian) method is used in code LARED-H. Suitable results for a hohlraum is illustrated.