Characterization of batch mixers using numerical flow simulations
Characterization of batch mixers using numerical flow simulations
复制标题
使用数值流动模拟表征间歇式混合机
DOI：
10.1002/aic.690461107
复制
发表时间：
2000
期刊：
影响因子：
3.7
通讯作者：
T. Jongen
中科院分区：
文献类型：
--
作者：
T. Jongen
这项工作的目的是表征各种变形的粘性膏体进行分批混合过程中，并调查混合机的配置和操作条件的影响。为此，几个混合器的几何形状进行了建模的方式代表的混合机制发生。双叶片的安排，这是典型的分批混合，在这项研究中使用，以及行星搅拌机。控制流体变形的方程在各种混合器几何形状中使用数值求解技术（在固定网格上的有限元离散化，用虚拟域方法解释内部运动的叶片）求解。基于所获得的随时间变化的速度场，使用相关的运动学流分类参数来表征在各种混合器中发生的变形类型。然后将这些参数与混合器的机械作用相关联。
The objective of this work is to characterize various deformations to which viscous pastes are subjected during their batch mixing and to investigate the influence of mixer configurations and operating conditions. For this, several mixer geometries were modeled in a way representative of the mixing mechanisms taking place. The twin-blade arrangement, which is typical in batch mixing, was used in this study, as well as planetary mixers. The equations governing the deformation of the fluid were solved in the various mixer geometries, using numerical solution techniques (finite-element discretization on a fixed mesh, with a fictitious domain method accounting for the internally moving blades). Based on the time-dependence velocity fields obtained, the type of deformation taking place in various mixers was characterized using relevant kinematic flow classification parameters. These parameters were then related to the mechanical action of the mixer.