阻抗梯度飞片加载下的超高速发射二维数值模拟方法

计算物理 ›› 2004, Vol. 21 ›› Issue (4): 305-310.

阻抗梯度飞片加载下的超高速发射二维数值模拟方法

柏劲松, 谭华, 李平, 华劲松, 戴诚达, 陈森华

中物院流体物理研究所冲击波物理与爆轰物理实验室, 四川绵阳 621900

收稿日期:2003-05-12 修回日期:2003-10-21 出版日期:2004-07-25 发布日期:2004-07-25
作者简介:柏劲松(1968-),男,副研究员,博士,从事计算爆炸力学和常规兵器方面理论计算方法研究和数值模拟研究工作.

Numerical Simulation Method for 2-D Hypervelocity Launcher Under the Graded Density Impactor Drives

BAI Jing-song, TAN Hua, LI Ping, HUA Jing-song, DAI Cheng-da, CHEN Sen-hua

Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621099, China

Received:2003-05-12 Revised:2003-10-21 Online:2004-07-25 Published:2004-07-25

摘要/Abstract

摘要： 阻抗梯度飞片准等熵加载和超高速发射的二维数值模拟,在计算方法上集中体现了多介质、多界面、大变形、高密度比等特点.采用多介质流体高精度PPM计算方法,以VOF为基础研制MFPPM2二维计算程序,数值模拟Sandia实验室的超高速发射实验模型,获得了与Sandia实验室数值计算一致的结果.

关键词: 阻抗梯度飞片, 高精度数值模拟, 超高速发射

Abstract: A numerical simulation method is presented for calculating two dimensional two-stage light-gas gun impacts to launch flier to hypervelocity.It uses the complex algorithm, concerned with the treatment of multi-materials, multi-interfaces, huge distortions and high density ratios etc. Basing on multi-fluid VOF and PPM methods, we develop the MFPPM2 shock wave physics code to simulate the Sandia hypervelocity impaction experimental confighuration model. Some results from the MFPPM2 are griven and appear to be in good agreement with those of the CTH code in Sandia Laboratory.

Key words: graded density impactor, high resolution numerical simulation, hypervelocity launch

中图分类号:

O35 O347.1

柏劲松, 谭华, 李平, 华劲松, 戴诚达, 陈森华. 阻抗梯度飞片加载下的超高速发射二维数值模拟方法[J]. 计算物理, 2004, 21(4): 305-310.

BAI Jing-song, TAN Hua, LI Ping, HUA Jing-song, DAI Cheng-da, CHEN Sen-hua. Numerical Simulation Method for 2-D Hypervelocity Launcher Under the Graded Density Impactor Drives[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2004, 21(4): 305-310.