Numerical simulation of flow considering water injection in front of a radial compressor stage

This work provides information about the overall behaviour of the machine and analyses thermodynamic aspects related to water droplets injection in the compression process. In the radial compressor CFD model, different water injection rates and droplets sizes are tested, and their influence on the compressor performance is investigated. Some considerations about the efficiency and the specific work of the compressor are also presented. Lastly, a through-the-impeller analysis is carried out