Numerical modeling of sand particle erosion in return bends in gas-particle two-phase flow

Abstract

In gas and oil industry, erosion damage to pipelines' bends and elbows due to the presence of sand particles has been a challenging issue. In this study, a computational model approach was used to evaluate the erosion rates at di erent vertical return bends: sharp bend, standard elbow, 180 pipe bend, and long elbow. The air ow in the pipe was simulated using the SIMPLE method and the k ! SST turbulence model. An Eulerian-Lagrangian approach was used to predict particle trajectories and related erosion rates. Di erent particle sizes and mass ow rates were considered, and Oka model was used in these simulations to evaluate the erosion rate. Under the same condition, the simulation results indicated that the sharp return bends experienced the highest erosion rates, and the 180 bends experienced the lowest erosion among the studied con gurations. It was also found that the erosion rate was linearly proportional to the mass ow rate of particles for all cases studied. contributions are in the elds of computational uid dynamics, multiphase ows, particle transport, heat transfer, thermal systems, and energy management.

Hydromechanics, Aerodynamics and Thermodynamics: Critical Numerical Analysis of Aerodynamics of BLE Turbine Blade

“…A. Farokhipour, z. Mansoori, M. Saffar-Avval and G. Ahmadi in [12] argue that the first phase in modeling erosion was to comprehend the manner in which erosion develops on turbine blades. This is the phase where images of eroded blade produced by 3M Reynolds are applicable.…”