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

Minsun Chen; Houman Jiang

doi:10.1117/12.2181812

4 May 2015 Three-dimensional thermal response numerical simulation of laser irradiating simulative warhead target

Minsun Chen, Houman Jiang

Proceedings Volume 9543, Third International Symposium on Laser Interaction with Matter; 95430H (2015) https://doi.org/10.1117/12.2181812
Event: Third International Symposium on Laser Interaction with Matter, 2014, Jiangsu, China

Abstract

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/cm² 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.

Citation Download Citation

Minsun Chen and Houman Jiang "Three-dimensional thermal response numerical simulation of laser irradiating simulative warhead target", Proc. SPIE 9543, Third International Symposium on Laser Interaction with Matter, 95430H (4 May 2015); https://doi.org/10.1117/12.2181812

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