Numerical Methods for Tracking Interfaces With Surface Tension in 3-D Mold Filling Processes
Numerical Methods for Tracking Interfaces With Surface Tension in 3-D Mold Filling Processes
复制标题
3D 模具填充过程中跟踪表面张力界面的数值方法
DOI：
--
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
P. Tubesing
中科院分区：
文献类型：
--
作者：
M. W. Williams;D. Kothe;D. Korzekwa;P. Tubesing
模拟了低韦伯数和高韦伯数两种流动条件下的重力浇注铸造过程。所研究的验证问题是一个对称的侧面填充问题和一个更复杂的带有溢流和障碍物的非对称顶部填充问题。建立了一个新的连续介质表面力模型，并将其应用于低韦伯数问题。将所得到的模拟结果与为验证当前和未来的重力浇注模拟而进行的实验进行了比较。这些模拟被发现捕捉到了复杂三维流动的大部分定性行为。
Gravity-pour casting processes are simulated for both low and high Weber number flows. The validation problems examined are a symmetric side-fill problem and a more complex asymmetric top-fill problem with flow over and obstacle. A recently developed continuum surface force model was implemented within a transient three-dimensional software simulation tool and applied to the low Weber number problem. The resulting simulations are compared with experiments that were conducted in order to validate current and future gravity-pour casting simulations. The simulations are found to capture much of the qualitative behavior of the complex three-dimensional flows.© 2002 ASME