Computation and plotting of solid particle flow in rotating cascades

A numerical technique to solve the three dimensional equations of motion of solid particles suspended by a compressible fluid flow in a rotating cascade of a turbomachine is presented. The solution of these equations utilizes the numerically computed nonparticle fluid flow properties through the same cascade channel. It also takes into consideration the experimentally investigated phenomenon of solid particle impingement with the blade surface and turbomachine casing and their subsequent rebound. Computer plottings of the absolute paths of the solid particles, their trajectories relative to the rotor blades, and their velocity distributions in a turbine stator, turbine stage, and a compressor one and one-half stage are given.