Numerical simulation of sand erosion phenomena in a particle separator

Junichi Kuki, Kazuyuki Toda, Makoto Yamamoto

Research output: Contribution to journalConference article

7 Citations (Scopus)


Erosive actions of solid particles within a flow field are very important in a great number of engineering applications such as aircraft, ship, turbo-machinery and so on, which is referred to "sand erosion". We have developed the numerical method to predict sand erosion phenomenon and the temporal change of the eroded surface. Performing iterative computations for the turbulent flow field, the particle trajectories, the mass removed from a wall, and the deformation of the wall, the behavior of sand erosion can be simulated numerically. In the present study, our numerical procedure is applied to the particle separator of a helicopter engine. Several kinds of particles with different diameter and combinations of wall and particle materials are selected to clear the sand erosion phenomena within the separator. Investigating the numerical results, the characteristics of particle motions, the temporal change of wall shape and the reason for the deterioration of separation efficiency are clarified.

Original languageEnglish
Pages (from-to)565-570
Number of pages6
JournalKey Engineering Materials
Publication statusPublished - 30 Jun 2003
EventProceedings of the International Conference on Experimental and Computational Mechanics in Engineering - Dunhuang, China
Duration: 24 Aug 200227 Aug 2002


  • Computational Fluid Dynamics
  • Erosion Wear
  • Euler-Lagrangean Method
  • Gas-Particle Flow
  • Particle Separator
  • Sand Erosion
  • Two-Phase Turbulent Flow

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