Three-dimensional thermal response numerical simulation of laser irradiating simulative warhead target

被引：0

作者：

Chen Minsun ^{[1
]}

Jiang Houman ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Optoelect Sci & Engn, Changsha 410073, Hunan, Peoples R China

来源：

THIRD INTERNATIONAL SYMPOSIUM ON LASER INTERACTION WITH MATTER | 2015年 / 9543卷

关键词：

laser irradiation effects; simulative warhead; SPH; tangential airflow; numerical simulation; SMOOTHED PARTICLE HYDRODYNAMICS;

D O I：

10.1117/12.2181812

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The thermal response of a cylindrical simulative warhead consisting of the steel casing and the TNT explosive irradiated by laser is simulated, basing on the smoothed particle hydrodynamics method. Preliminary computational simulation results show that, when the power density of 500W/cm(2) continuous laser irradiation on a sealed explosive device consisting of the type 304 steel casing with thickness of 5mm and TNT explosive, compared with no airflow, the speed of 200m/s tangential airflow can reduce the thermal initiation time of 0.6s. In the case of incident laser power density is high, the convection cooling effect of tangential airflow can be neglected. The oxidation of airflow can significantly shorten the thermal initiation time of internal explosive.

引用

页数：6

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