ALE有限元法及边界元法在二维带挡板箱体液体晃荡现象模拟中的比较(英文)

Comparison of ALE Finite Element Method and Boundary Element Method for Simulation of Liquid Sloshing in 2-D Baffled Tank

该文对二维带挡板箱体液体晃荡现象进行了模拟和比较。任意拉格朗日欧拉(ALE)法基于Navier-Stokes方程,边界元法运用势流理论。首先,通过与不带挡板箱体液体晃荡现象的解析解的比较,验证了两种方法的有效性;进而研究了带刚性挡板箱体液体晃荡现象,并分析了挡板的尺寸、位置对晃荡现象的影响。文中还计算了作用于箱体壁面上的力和力矩。

In this paper, the liquid sloshing in 2-D baffled tank is simulated and compared. In the Arbitrary Lagrangian-Eulerian （ALE） method, the full Navier-Stokes equations are employed. In the boundary element method （BEM）, the liquid in the tank is assumed to be potential. Both methods are firstly compared with the available analytical solution for liquid sloshing in a tank without baffles. Good agreement is obtained. The liquid sloshing with rigid baffles is investigated through the comparison of the two methods. The effects of the baffle parameters such as dimension and position on sloshing are provided. The dynamic force and moment acting on the tank are also computed.