Numerical simulation of erosion-corrosion in the liquid-solid two-phase flow

Erosion-corrosion of liquid-solid two-phase flow occurring in a pipe with s udden expansion in cross-section is numerically simulated in this paper. Th e global model for erosion-corrosion process includes three main components : the liquid-solid two-phase flow model, erosion model and corrosion model. The Eulerian-Lagrangian approach is used to simulate liquid-solid two-phas e flow, while the stochastic trajectory model was adopted to obtain propert ies of particle phase. Two-way coupling effect between the fluid and the pa rticle phase is considered in the model. The accuracy of the models is test ed by the data in the reference. The comparison shows that the model is bas ically correct and feasible.