サンドエロージョンによる翼性能変化の数値シミュレーション(流体工学, 流体機械)
2001 年 67 巻 662 号 p. 2397-2404
詳細
2001 年 67 巻 662 号 p. 2397-2404
Sand erosion is a phenomenon in which solid particles impinging to a wall cause a damage to a part of the wall. It occurs on the walls of a lot of machines such as airplane, ship and pump. It is well known that performance and lifetime of the equipment are deteriorated due to sand erosion. In the present study, computations of sand erosion phenomena around a 2 dimensional airfoil are carried out to clarify the change of geometry and flowfield with proceeding the erosion. Surface roughness is taken into account using a wall function, and the influence of surface roughness is investigated numerically. Moreover, the effects of different wall materials are studied.
