抄録
To facilitate the manufacture of impeller in an centrifugal blower, we developed a swaged 3D impeller using CFD (Computational Fluid Dynamics) and multi-objective optimization method. By visualizing the total efficiency coefficient distribution in the impeller, it was revealed that the total pressure loss in the impeller flow passage was reduced. Furthermore, we confirmed that the static pressure efficiency of the developed impeller increased by 1% compared with the baseline impeller by an experiment.