What's inside?
This two-part paper describes the application and numerical and experimental validation of the 3D Inverse Design method to the design of a centrifugal compressor impeller with splitter blades.
The CFD results confirm that the inverse design impeller has a more uniform exit flow, better control of tip leakage flow and higher efficiency than the conventional impeller. The results also show that the shape of the trailing edge geometry has a very appreciable effect on the impeller Euler head and this must be accurately modeled in all CFD computations to ensure closer match between CFD and experimental results.
In this publication, you will:
- Part I describes the input specification for the impeller and how its performance compares with the conventional design.
- Part II looks at a detailed experimental comparison of the flow field at the exit of the two impellers.
- Understand how an inverse method can be used to create higher performing compressor stage designs.
