固液二相流時のポンプケーシング摩耗量の数値予測

抄録

To predict erosion wear on a pump casing wall due to the impingement of solid particles, a Lagrangian approach is employed to calculate the impinging velocities on the casing wall under the assumption that the water flow field remains unchanged due to the existence of the particles, and the effects of mutual collision among the particles are investigated. With the use of these impinging velocities and Bitter's erosion model, the erosion wear rate on the casing is evaluated and confirmed by Roco's experimental data, showing the applicability of this method for the case of larger particles.