What's inside?
The paper describes the design of the blade geometry of a medium specific speed mixed flow pump impeller by using a three-dimensional inverse design method in which the blade circulation is specified. The design objective is the reduction of the impeller exit flow nonuniformity by reducing the secondary flows on the blade suction surface.
The paper describes in detail the aerodynamic criteria used for the suppression of secondary flows with reference to the loading distribution and blade stacking condition used in the design.
The impeller geometry of a medium specific speed mixed flow pump was designed by using the three dimensional inverse design method of Zangeneh (1991). Two different impellers were designed using the inverse design method with the same circulation distribution, but different stacking conditions.
In this publication, you will:
- Discover how to reduce impeller exit flow nonuniformity.
- Understand the objective of the design is to suppress secondary flows.
- See how to account a viscous effect in a systematic way in the impellers.
