摘要
为研究双锥型水力旋流器内液—液分离机理以提高其分离性能和降低旋流器的能量损耗,该文使用FLUENT软件中的多相流欧拉分析方法结合雷诺应力湍流模型实现了双锥型水力旋流器内液—液分离过程的三维数值模拟并预测其分离效率。该模拟适用于轻质分散相的体积率超过10%,湍流具有各向异性结构的一般广义情形。计算给出了旋流器内部的流动结构,展示了液—液两相由开始的均相来流如何在旋流器内逐渐分离、聚合、迁移的过程,基于计算结果预测了旋流器的分离效率并与实验结果进行了对比,表明预测和实验结果较为吻合,说明计算结果是有效可信的。
To investigate the mechanism of liquid-liquid separation in a double-cone hydrocyclone and to improve the separation performance of the hydrocyclone, the authors simulate numerically the three-dimensional liquidliquid turbulent flow and separation process in the hydrocyclone using FLUENT software. The Eulerian model of a multiphase flow and Reynolds-stress turbulence model were both applied to this simulation for general applications, concerning with dispersed phase with volumetric ratio over 10% and anisotropic turbulent flow dominated by swirling in the hydrocyclone. It is shown well in the simulation that how separation, aggregation and shift of the dispersed phase liquid proceeds in a hydrocyclone. The current simulation is verified by comparing predicted and measured separation efficiency of the hydrocyclone.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2006年第5期15-19,共5页
Transactions of the Chinese Society of Agricultural Engineering
作者简介
黄思,副教授，博士，从事流体机械方面的教学及研究工作。广州华南理工大学工业装备与控制工程学院，510641。E-mail：dynamicl682000@yahoo．com．cn
