Influences of Two-Phase Outlet on Axial Vortex Separator
Investigating the internal flow field distribution of the axial vortex separator and the influences of structural parameters on the internal flow field is necessary to effectively predict the performance of the separator and design a more efficient separator.The Fluent software was used to analyze the distribution of flow field inside the axial vortex separator and identify how the two-phase outlet structure affects the internal flow field and separation performance of the separator.The results show that a low-velocity reflux area occurs at the water phase outlet of the separator when the outlet diameter increases to 40 mm.This phenomenon can be mitigated by reducing the severity of pipe diameter shrinkage or other means.With other structural parameters constant,the separation efficiency of the separator is a function of the Reynolds number(Re)and the ratio of two-phase outlet to inlet diameter(Dw/Din or Do/Din).The separation efficiency is proportional to the ratio of oil phase outlet to inlet diameter(Do/Din),and also a quadratic function of Re and Dw/Din.The research findings provide theoretical reference for optimization of the axial vortex separator's performance.
axial vortex separatorseparation performancenumerical simulationflow field analysisin-fluential factor