摘要
结合Eulerian流体弹塑性计算方法和Lagrangian结构动力学计算方法的特点,自主提出了一种比较通用的Euler-Lagrange流固耦合数值模拟计算技术,幵编制形成了一套包含多种材料模型、状态方程及加载方式的多用途流固耦合计算分析程序。测试算例表明,自主开发的流固耦合算法使得流固间的相互作用可以更好地被监控、评价,从而可以更好地分析流场传递到结构中的载荷作用及流固相互作用过程。同时可为核工程中的爆炸、冲击载荷下结构安全性评价提供了一个较好的分析平台,也可为相关多物理场耦合计算技术的开发提供基础平台。
In this paper,a Coupled-Euler-Lagrange multi-purpose code for explosion dynamics analysis has been developed combining the characteristics of Eulerian algorithm and Lagrangian algorithm.The code contains several material models and equations of state to describe the behavior of the material under different types of loading.The test results show that with this Euler-Lagrange coupling code,the interaction between fluids and solids can be monitored and evaluated,and the loading and the interaction process between the flow field and the structure can be analyzed in a better way.At the same time,it can provide a better analysis platform for the structural safety evaluation under explosive and impact loads in nuclear engineering,and also provide a basic platform for the development of related multi-physical field coupling computing technology.
作者
浦锡锋
王仲琦
Pu Xifeng;Wang Zhongqi(Northwest Institute of Nuclear Technology,Xi’an,710024,China;State Key Lab of Explosion and Safety Science,Beijing Institute of Technology,Beijing,100081,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2019年第2期202-207,共6页
Nuclear Power Engineering
