| The fluid leaving a centrifugal compressor impeller contains a high amount of kinetic energy to a diffuser. Downstream of the impeller, in the diffuser, part of this energy is diffused and transformed to static pressure. In this present work, the Vaneless Diffuser is used. An existing experimental data of a vaneless diffuser was numerically verified, using Computational Fluid Dynamics (CFD). In order to improve the compressor performance, it is necessary to understand the detailed flow pattern in the diffuser.; The flow in the vanless diffuser was numerically analyzed and the result compared with the experimental data. The computation was carried out by applying the experimental data as an initial input just after the impeller and corresponding boundary conditions.; The main objective of this study was to verify the numerical accuracy and contribute knowledge towards predicting the performance of the compressor theoretically, which is very essential for the compressor designer and user. |
