사류펌프 임펠러 및 디퓨져 최적 설계

In this paper, design optimization for mixed-flow pump impellers and diffusers has been studied by using a commercial CFD code. Geometric design variables were defined with the meridional shape and the vane plane development which is derived from the frontal view of the impeller and diffuser, The influences of selected design variables on the impeller and diffuser performance are also examined as a result of the optimization process. The results showd that the newly defined design variables are successful in optimizing the mixed-flow pump impellers and diffusers. In addition, the optimized models satisfied the performance requirement of the pump based on the CFD results and will be verified by experiments in the next study.