A process pump suffered from high noise and vibration. Many unsuccessful attempts had been made to correct the design.
Existing Design
On the existing impeller the vane design was found to be incorrect causing a severe flow related problem.
This caused a large flow discontinuity in the blade passageway.
New Impeller Design
The vane geometry was modified using PumpXP bespoke design tools. This allowed the fluid to remain attached to the vane geometry and cured the noise and vibration issue of the machine.
The new design is illustrated below.