Numerical Study of an Inertial Particle Separator Efficiency Under the Effect of Ice Accretion Caused by the Water Impingement
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The inertial particle separator (IPS) can face ice accretion due to the impingement of super-cooled water droplets on its inner surface. This work studies a numerical study using Computational Fluid Dynamics (CFD) for the ice accretion inside an IPS. This study is crucial in investigating the IPS performance that is affected by ice accretion. First, the numerical simulation of ice accretion for a simpler geometry, a cylinder, is validated with the experimental data. Then, the simulation of water impingement and ice accretion is studied for an IPS device. The ice profiles for different wall sections of the IPS show that ice accumulates on the bent surface of the shroud, the windward side of the hub, and the leading edge of the splitter. This accumulated ice changes the geometry of the IPS. Therefore, the separation efficiency of the IPS is expected to decrease due to the generation of ice in the way of the scavenge outlet.
