Three-dimensional numerical simulation of fluid with sparse particles' erosion to pipelines

A three dimensional fluid flow model was set up in this paper, based on the computational fluid dynamics (CFD) and the elasticity theory. Using the finite volume method, a 120 degrees bend was taken as a research object to simulate the erosion to the wall of fluid with sparse particles, finally, to determine the most severe wear areas. At the same time, the distribution of two-phase flow's pressure and velocity was analyzed in 45 degrees and 90 degrees bends, then tracked the trajectory of the particles. The results show that the 90 degrees bend has the smallest wear area and particle distribution or combination property is the best.