| 一种求解流体力学方程组的自适应显式时间积分算法及其应用 |
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| 引用本文： | 刘青凯,徐小文,吴俊峰.一种求解流体力学方程组的自适应显式时间积分算法及其应用[J].计算物理,2011,28(2):174-180. |
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| 作者姓名： | 刘青凯 徐小文 吴俊峰 |
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| 作者单位： | 北京应用物理与计算数学研究所,北京,100094 |
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| 基金项目： | 863计划，国家自然科学基金 |
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| 摘 要： | 针对交替方向显式离散格式,提出一个基于结构网格局部加密技术(SAMR)的求解流体力学方程组的自适应时间积分算法;基于该算法,在JAsMIN框架上研制多介质流体力学并行自适应数值模拟程序;在512个处理器上模拟惯性约束聚变中的二维内爆模型.数值模拟结果和并行性能分析显示了算法的正确性和并行实现的高效率.
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| 关 键 词： | 自适应计算 并行计算 交替方向显式离散格式 JASMIN |
An Adaptive Explicit Time Integration Algorithm for Hydrodynamic Equations and Application in ICF |
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| LIU Qingkai,XU Xiaowen,WU Junfeng.An Adaptive Explicit Time Integration Algorithm for Hydrodynamic Equations and Application in ICF[J].Chinese Journal of Computational Physics,2011,28(2):174-180. |
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| Authors: | LIU Qingkai XU Xiaowen WU Junfeng |
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| Institution: | LIU Qingkai,XU Xiaowen,WU Junfeng(Institute of Applied Physics and Computational Mathematics,Beijing 100094,China) |
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| Abstract: | An adaptive time integration algorithm is proposed for ADE(alternating direction explicit based on dimension splitting) scheme.Based on the algorithm,a parallel adaptive program for multi-material hydrodynamics is developed on JASMIN.An implosion experiment in ICF(inertial confinement fusion) is simulated on 512 processors.Both simulation results and performance analysis demonstrate correctness and efficiency of the algorithm and the code. |
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| Keywords: | JASMIN |
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