抄録
Sand erosion is a phenomenon where a solid particle impinging to a wall causes to damage to a part of the wall. It occurs on the wall in a lot of machines such as airplane, ship and pump. It is well known that performance and lifetime of the equipment are severely degraded due to sand erosion. In this study, we compute sand erosion phenomena in a particle separator which is implemented into the propulsion system of a helicopter, in order to clarity the change of surface geometry and flowfield and the influence on the separator effectiveness with the proceeding of erosion. Moreover, we reveal the difference of the trajectories when material and particle diameter is parametrically changed.
