二阶段的 pusher 离心机的设计很快发展了,但是在他们的实践后面的理论的好理解是一个长期的问题。更好理解离心的过滤器过程,计算液体动力学(CFD ) 软件程序流畅被用来为三维的几何学建模并且基于 Euler-Euler,动人的网孔,动态网孔和多孔的媒介模仿多相的流动模型。模拟正切的速度是比为僵硬身体的运动的那些小一些的。在稳定的流动区域,光线的速度在对理论数据的好同意。另外,稳固的集中分发与试验性的数据被获得并且也出现了好同意。这些结果证明这个模拟方法能是一个有效工具优化二阶段的 pusher 离心机的设计。
The design of two-stage pusher centrifuges have developed rapidly, but a good understanding of the theory behind their practice is a long-standing problem. To better understand centrifugal filter processes, the computational fluid dynamics (CFD) software program FLUENT has been used to model the three-dimensional geometry and to simulate multiphase flows based on Euler-Euler, moving mesh, dynamic mesh and porous media models. The simulation tangential velocities were a little smaller than those for rigid-body motion. In the stable flow region, the radial velocities were in good agreement with the theoretical data. Additionally, solid concentration distribution were obtained and also showed good agreement with the experimental data. These results show that this simulation method could be an effective tool to optimize the design of the two-stage pusher centrifuge.