NUMERICAL SIMULATION OF THE EROSION IN BEND PIPES CAUSED BY GAS-PARTICLE FLOWS

In this paper the erosion occurred inside the bend by gas-particles flow is studied. The simulation offlow transport through the bend is conducted using Computational Fluid Dynamics (CFD) and influence of erosion in this section is evaluated by experimental relations. It is shown that erosion occurred in regions where the momentum of particle can be transferred to surface of the bend. This momentum transfer can be occurred when the velocity of the gas flow converted to pressure by impinging or changes in direction of flow streams. Besides, the local erosion and its magnitude are also simulated and influence of erosion on bend evaluated.