摘要
脉冲X射线辐照材料时,会在材料中形成能量沉积并产生热击波。目前一般使用差分法对所形成的热击波进行数值模拟,但若考虑多层材料之间的间隙,差分法处理起来比较困难。本文使用SPH方法对脉冲X射线辐照含间隙多层材料进行了数值模拟。结果表明,各层材料之间的缝隙对热击波的强度具有一定的影响,而对表面气化反冲冲量没有影响。
When high energy X-ray irradiates material,it will cause energy deposition in materials,and generates thermal shock wave.At present,finite difference method is used to the numerical simulation of thermal shock usually,but if considering the interspace between the multilayer materials,the difference method will be more difficult.This paper used the SPH method to simulate multilayer discontinuous structure irradiated by high energy X-ray,and the results show that the gap between the materials of each layer has a certain influence on the thermal shock wave intensity,but doesn＇t have any affect to gasification impulse.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2012年第B09期48-52,共5页
Atomic Energy Science and Technology
关键词
脉冲X射线
能量沉积
热击波
间隙
SPH
impulse X-ray
energy deposition
thermal shock wave
interspace
SPH
作者简介
徐彬彬（1988-），男，湖南衡阳人，硕士研究生，从事脉冲辐照动力学研究
