CFD simulations of a conceptual Rain Erosion Teste

This document presents CFD computations of a Rain Erosion Tester, including the effects of configuration of the surrounding chamber, pitch setting, inflow velocity and compressibility. Generally, it is concluded that the aerodynamic effect from the chamber configuration, and compressibility is weak.

It is concluded that the zero degrees pitch of the blades give a undisturbed velocity field above the disk, and that negative pitch settings should be avoided even though the aerodynamic effects on the rain particles must be considered to be relatively low. Additionally, it is concluded that power consumption could be reduced by improving the aerodynamic profile of the rotor blades.