金属射流侵彻水介质间隔靶数值模拟

为解决大厚度均质靶存在的不足，对金属射流侵彻水介质间隔等效靶进行研究。应用AUTODYN 有限元软件对金属射流侵彻水介质间隔靶过程进行数值仿真，建立射流侵彻的空气模型、水模型、间隔靶模型与金属射流相互作用的过程，研究侵彻水介质间隔靶时金属射流射流速度的衰减规律，并与空气介质间隔靶进行对比。结果表明：水介质间隔等效靶对金属射流衰减效果较好，可为设计水介质等效靶提供依据。

Numerical Simulation of Metal Jet Penetration into Aqueous Medium Spaced Target

For overcoming the shortcoming of large thickness homogeneous target, research on metal jet penetrationinto aqueous medium spaced target. The process of metal jet penetrating into aqueous medium spaced target was numericalsimulated with AUTODYN. The interaction process among metal jet and air model, water model, spaced target model wasestablished. On this base, velocity decay principle of metal jet penetrating into aqueous medium spaced target wasinvestigated and compared with air medium spaced target. The results show that metal jet penetrating into aqueous mediumspaced target can effectively decay the metal jet, and provide the basis for designing the aqueous medium spaced target.