超高速碰撞相似律的数值模拟验证  

Numerically simulating verification of the comparability rule on hypervelocity impact

作　　者：沈雁鸣[1] 陈坚强[1] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《爆炸与冲击》2011年第4期343-348,共6页Explosion and Shock Waves

基　　金：国家自然科学基金创新群体基金项目(10621062)~~

摘　　要：在量纲一分析的基础上,导出了超高速碰撞模拟中的相似律表达式,并利用光滑粒子流体动力学方法进行了数值模拟验证,结果表明,符合超高速碰撞相似律的模型在碰撞过程模拟中具有较好的相似性。The comparability rule on hydrodynamics impact was described and validated with the dimension analysis method.The modified SPH method was used to simulate the thin target penetration to evaluate the comparability rule.It is demonstrated that the comparability rule on hypervelocity impact is accurate and feasible and it is significant for the experiments.

关 键 词：爆炸力学 相似律 光滑粒子流体动力学法(SPH法) 超高速碰撞 量纲分析 

分 类 号：O385[理学—流体力学]