Solid particle erosion is a mechanical process that removes material by the impact of solid particles entrained in the flow. Erosion\nis a leading cause of failure of oil and gas pipelines and fittings in fluid handling industries. Different approaches have been used to\ncontrol or minimize damage caused by erosion in particulated gas-solid or liquid-solid flows. S-bend geometry is widely used in\ndifferent fluid handling equipment that may be susceptible to erosion damage. The results of a computational fluid dynamic (CFD)\nsimulation of diluted gas-solid and liquid-solid flows in an S-bend are presented in this paper. In addition to particle impact velocity,\nthe bend radius may have significant influence on the magnitude and the location of erosion. CFD analysis was performed at three\ndifferent air velocities (15.24 m/sââ?¬â??45.72 m/s) and three different water velocities (0.1 m/sââ?¬â??10 m/s) with entrained solid particles. The\nparticle sizes used in the analysis range between 50 and 300 microns. Maximum erosion was observed in water with 10 m/s, 250-\nmicron particle size, and a ratio of 3.5. The location of maximum erosion was observed in water with 10 m/s, 300-micron particle\nsize, and a ratio of 3.5. Comparison of CFD results with available literature data showed reasonable and good agreement.
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