The design targets for this consultancy were to improve the impeller suction performance at design point, improve the stall performance and maximise pump head at shut-down.
The deliverables were a design guideline based on sensitivity analysis for impeller design and optimised impeller geometries for different objectives.
The client is one of largest global pump manufacturers providing a full range of pump series for a variety of applications. They have been using TURBOdesign1 in their design system and have collaborated with ADT on several projects previously. In this project, they asked ADT to perform a multi-objective design optimization of a pump stage as shown in Fig. 1 in order to identify the most important geometrical and blade loading parameters that affect the pump performance, in terms of hydraulic efficiency, cavitation, shut-off and stall characteristics. For this purpose the 3D inverse design method TURBOdesign1 is coupled with Design of Experiment Method (DoE), Response Surface Modelling (RSM) and Multi-objective Genetic Algorithm (MOGA).