聚能射流侵彻过程的相似律及其在数值仿真中的应用

Analogue law of the penetration process of shaped charge jet and application on numerical simulation

利用相似理论分析了聚能射流侵彻钢靶板过程,建立了相关的相似律模型,得到了相应的相似参数.对聚能射流侵彻钢靶板的过程进行了数值计算,结果表明,相似律模型提出的侵彻相似率在聚能射流侵彻钢靶板的过程中成立.将相似律模型用于数值仿真计算中,可以在保证精度的条件下,减少计算量,缩短计算时间,降低计算成本.

Using the analogue theory, the process of shaped charge jet penetrating steel target is analyzed, and the relations of the analogue models are established, the analogue parameters are gained. With the model, the numerical results indicate that, the shaping of the model accord with the analogue law, and the depth of penetration on steel target also satisfy simulation ratio. Analogue model will be used for numerical simulation, so we can reduce the amount of computation and the time of computation with lower cost in the conditions of guaranteeing the accuracy.