用高精度有限差分法模拟烧蚀瑞利-泰勒不稳定性  

High-order Finite Difference Method for Simulation of Ablative Rayleigh-Taylor Instability

作　　者：范征锋[1] 罗纪生[1] 

机构地区：[1]天津大学机械学院流体力学专业,天津300072

出　　处：《计算物理》2008年第6期701-704,共4页Chinese Journal of Computational Physics

摘　　要：求解烧蚀面附近流场的定常解,并以此作为基本流实现用高精度的WENO格式对烧蚀瑞利-泰勒不稳定性的数值模拟.线性增长率与Lindl公式以及线性稳定性分析给出的结果相符合,证明该数值模拟方法的准确性与精度,该方法还具有较好的界面变形捕捉能力.Steady state flow field around ablation front is solved and taken as a basic flow in the simulation of ablative Rayleigh-Taylor instability with a high-order WENO scheme. Linear growth rate simulated agrees with Lindl formula and linear stability analysis. It indicates validity and accuracy of the method. The method shows good ability in capturing interface deformation.

关 键 词：瑞利-泰勒不稳定性 高精度有限差分法 WENO 

分 类 号：O534.2[理学—等离子体物理]