水平弯曲管道中固液多相流分相体积含率数值模拟

弯曲管道中固液多相流各相体积的分布特征对油和水的流动特性提供重要的参数,为原油输送和生产剖面测井设计奠定基础。为模拟固液多相流各相体积分布特征,基于边界条件和多相流理论,通过建立三维固液多相流模型模拟,进行瞬态数值模拟最终得到各相体积分布图。模拟结果表明,各相体积分布主要受流速的影响,随着主流速度的增大,水相和油相体积分布呈相反的变化,而与颗粒相体积分数数值大小关系较小。

Numerical Simulation for Phase Volume Fraction of Solid-liquid Multiphase Flows in Horizontal Curved Pipe

The distribution characteristics of the phase volume of the solid-liquid multiphase flow in the curved pipe can provide important parameters for the research on flow characteristics of oil and water,and it is very important for the crude oil transportation and logging design of production profile.In order to simulate the volume distribution characteristics of solid-liquid multiphase flow,a three-dimensional solid-liquid multiphase flow model is established based on the boundary conditions and multiphase flow theory in this paper.T hrough this model,the phase volume distribution map of each phase is finally obtained according to transient numerical simulation.The simulation results show that the volume distribution of each phase is mainly affected by the flow velocity.As the increase of the mainstream velocity,the volume distribution of the water and the oil phase changes in the opposite directions.However,there is no relationship between the flow velocity and the particle phase volume fraction.