关键词: 锥形节流器 , 冲刷腐蚀 , 离散相模型 , 数值模拟 , 多相流

Abstract: In Gas injection pipeline the erosion wear of solid particle in cone throttling element was an important factor for causing failure. In this paper, made by the method of computational fluid dynamics finite volume was used for the numerical simulation of the erosion abrasion and the degree to erosion abrasion and the relationship of the shear stress with the injection volume, particle diameter and the particle content change were researched. The results showed that as the particle diameter increased, the tube wall wear relatively focused on the high speed area, the degree to the cone wear was increased. When the flow rate increased, erosion rate and shear stress were increased. And when the particle concentration increased, the quantity of the erosion abrasion was increased. So the research to the throttling element antifriction corrosion study and throttling element failure prediction would provide the theory guidance.

Key words: Conical Restrictor , Discrete phase model , Scouring erosion ,  Numerical simulation ,  Multiphase flow