液体罐箱多欧拉域流固耦合碰撞过程数值模拟

详细信息

NUMERICAL SIMULATION FOR IMPACTING PROCESS OF LIQUID TANK CONTAINER WITH MULTI-EULER SOLID-FLUID INTERACTION

摘要: 将结构有限元法和流体有限元法结合起来，利用多欧拉域流固耦合技术，建立了液体罐箱碰撞数值模拟模型，分析液体罐箱的铁路碰撞动力学响应。模型中水和空气均处理为可压缩的流体，其属性由状态方程描述。通过求解，得到碰撞过程中液体的晃动情况及液体压力变化的历程曲线。利用碰撞试验得到的加速度曲线进行了计算结果的验证，表明动力学分析结果与实际情况基本符合。
- 流固耦合 /
- 液体罐箱 /
- 铁路碰撞 /
- 数值模拟 /
- 晃动
Abstract: The structure and fluid finite element methods were combined by using the Multi-Euler Solid-Fluid interaction analysis technique. The Finite Element impacting model of a liquid tank container was established to analyze the dynamic response of railway impact. In this study, both air and water were treated as compressible fluid and their properties were modeled through the equation of states. The sloshing situation and pressure-time curves of liquid in impacting process were obtained. The acceleration results calculated were validated with testing results, which conclude that dynamic analytical results are mostly accordant with that of actual situations.
- solid-fluid interaction /
- liquid tank container /
- railway impact /
- numerical simulation /
- sloshing