Abstract
Particles erosion wear always consist in the intersection of tee pipe, which is an inevitable problem. In order to obtain the erosion wear characteristics of two-phase flow tee pipe, several cases of different inlet diameters are investigated numerically in this paper. Euler-Lagrange method is adopted to describe the gas-solid two-phase flow and the finite volume method is adopted to solve the erosion results. Meshing O-type grids to obtain the reasonable boundary layer in ICEM CFD. By verifying and comparing the turbulence intensity and velocity of the six meshes, a reasonable finite element model is selected. Intersection, the severest erosion region, is the location where the gas flow direction changes. The inlet diameter determines the region of the impact particles directly hitting the wall. When the inlet diameter is smaller, the erosion of the intersection is severer. As the inlet velocity increases, both the erosion of the intersection and the outlet pipe become severer. However, there are only the erosion scars at the intersection are affected, with the increase of particle mass flow.
Highlights
Erosion action of the pipe wall surfaces is regarded as a kind of wash and corrosion [1]
Pei et al worked out the numerical analysis on the maximum fluid-solid coupling erosion part in the elbow pipeline, and studied the flow field distribution, particle motion trajectory and the relationship between the maximum erosion rate and the influencing factors through computational fluid dynamics [9]
The calculation of erosion rate by FLUENT is judged by the mass of the wall reduction, which is defined as the mass reduction within the unit time unit area of the pipe wall
Summary
Erosion action of the pipe wall surfaces is regarded as a kind of wash and corrosion [1]. The erosion process of the tee pipe is complex and is affected by the flow velocity, particle mass flow rate, particle diameter, impact angle and the target material properties [4]. Pei et al worked out the numerical analysis on the maximum fluid-solid coupling erosion part in the elbow pipeline, and studied the flow field distribution, particle motion trajectory and the relationship between the maximum erosion rate and the influencing factors through computational fluid dynamics [9]. M.R. Banakermani worked out the numerical analysis and prediction of the erosion of the elbow for the gas-solid twophase flow in the elbow pipelines [12]. The tee pipe erosion was investigated, the effect of inlet diameter, inlet velocity and particle mass flow rate were discussed
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