论液-液水力旋流器的CFD方法  

Discuss of CFD Method of Liquid-liquid Hydrocyclone

作　　者：琚选择[1] 李自力[1] 孙卓辉[1] 张立平 

机构地区：[1]中国石油大学储运与建筑工程学院,山东东营257061 [2]中海石油研究中心,北京100027

出　　处：《石油矿场机械》2008年第7期14-19,共6页Oil Field Equipment

摘　　要：在液-液水力旋流器数值研究过程中,几何模型的网格划分、对流-扩散项的离散格式的确定以及湍流模型和多相流模型的选择都非常重要,结合CFD(计算流体动力学)理论、液-液水力旋流器内流场特性和前人的研究成果进行探讨。研究表明,网格划分首选六面体网格单元,对流-扩散项离散用QUICK格式计算精度更高,利用Reynolds-Stress模型对湍流场进行模拟更合理可信,采用2相流动滑移模型模拟其内的油相运动过程也较为客观。研究的结论对采用CFD方法优化设计液-液水力旋流器具有指导意义。In the course of study on numerical simulation of LLHC, the choices of mesh generation of computational domain, discretization scheme of convection-diffusion term, turbulence model and multiphase model are quite important. Based on the of the theory of CFD, the internal flow character of LLHC and previous research results are presented. The studies show that hexahedron cell is the first choices of mesh generation method, discretizing the convection-diffusion term using the QUICK scheme is more precise than other scheme, using the RSM to get simulation results is more reasonable and credible, the process of oil motion in LLHC simulated by the algebraic slip mixture model（ASM） is more objective. The study has directive significance on optimization design of hydrocyclone by the CFD method.

关 键 词：CFD 液-液水力旋流器 网格 离散格式 湍流模型 多相流模型 

分 类 号：TE931.1[石油与天然气工程—石油机械设备]