Models and Applications for Simulating Turbulent Solid–Liquid Suspensions in Stirred Tanks
Models and Applications for Simulating Turbulent Solid–Liquid Suspensions in Stirred Tanks
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DOI：
10.1252/jcej.14we056
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发表时间：
2015-05
影响因子：
0.8
通讯作者：
Zhipeng Li;J. Derksen;Zhengming Gao
中科院分区：
文献类型：
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作者：
Zhipeng Li;J. Derksen;Zhengming Gao
搅拌罐中的固液悬浮液在许多加工工业中很常见。两相湍流和相间相互作用等复杂的流动特性使得相应的数值模拟变得复杂且具有挑战性。在本文中，我们回顾了处理连续相和离散相的模型，并总结了模拟此类流动现象的应用，包括速度和湍流分量、固体浓度、刚悬浮速度、云高度、几何参数优化以及颗粒形状和类型。提出了有关不同建模方法的一些观点，并强调了具有解析粒子的欧拉-拉格朗日方法，以解决搅拌罐中的潜在悬浮机制。
Solid-liquid suspensions in stirred tanks are common in many process industries. The complex flow characteristics such as two-phase turbulence and inter-phase interaction make the corresponding numerical simulations complicated and challenging. In this paper, we review the models dealing with both the continuous and the discrete phases and summarize the applications for simulating such flow phenomena, including velocity and turbulence components, solids concentration, just-suspended speed, cloud height, optimization of geometrical parameters, and particle shape and type. Some perspectives concerning different modeling approaches are presented, and the Eulerian-Lagrangian approach with resolved particles is highlighted to address the underlying suspension mechanisms in stirred tanks.