From: CFD investigation of flow through a centrifugal compressor diffuser with splitter blades
Impeller | |
---|---|
 Impeller inlet diameter, mm | 92 (hub) 139 (shroud) |
 Impeller exit diameter, mm | 182 |
 Impeller exit blade height, mm | 10 |
 Impeller leading edge axial lean angle, degree | − 29 |
 Impeller trailing edge axial lean angle, degree | − 2 |
 Impeller speed, rpm | 43,500 |
 Number of blades | 36 ( radial) |
 Blade spanwise–backswept from radial, degree | 32–42 |
 Nodes | 372,260 |
 Elements | 348,398 |
Diffuser-1 | |
 Inlet diameter of diffuser-1, mm | 190 |
 Exit diameter of diffuser-1, mm | 250 |
 Main vane: height – length, mm | 10–46 |
 Main vane thickness, mm | 1 |
 Main vane angle, degree | 65° |
 Splitter vanes: height – length, mm | 10–32 |
 Splitter vane thickness, mm | 1 |
 Splitter vanes angle, degree | 59° |
 Number of vane/splitter pairs | 30 (straight) |
 Nodes | 372,890 |
 Elements | 349,792 |
Diffuser-2 | |
 Inlet diameter of diffuser-2, mm | 251 |
 Exit diameter of diffuser-2, mm | 410 |
 Number of vanes | 30 (curved) |
 Leading edge: height – thickness, mm | 11.4–5.2 |
 Trailing edge: height – thickness, mm | 20–6.1 |
 Chord of vanes, mm | 80 |
 Nodes | 344,260 |
 Elements | 323,544 |