Particle Trajectories in Gas Turbine Engines

This paper describes the technique of particle trajectory modeling in gas turbine engines with applications in helicopter inertial particle separator, axial ad centrifugal compressor. The model can be used with most CFD codes which utilize the finite volume (or element) techniques. Some qualitative validations were carried out using a laser transit anemometer in a particle separator and results show good comparison with predictions. The anemometer was also used to obtain restitution data for several target materials using quartz particle of different sizes at a range of impact velocities and angles.