횡형 편흡입 원심펌프의 설계 및 CFD에 의한 성능해석에 관한 연구

Abstract

The purpose of this study is focused on the analysis of 3D complex flow and performance characteristics of a centrifugal pump with volute casing. The numerical analysis was performed by commercial code CFX-10 according to the variation of flow rate, which is changing from 5.847m3/min to 7.062m3/min. The rated rotational speed of close type impeller is 1750rpm. Turbulence model, k-ω SST was selected to guaranty more accurate prediction of flow separation. The ICEM-CFD 10, reliable grid generation software was also adapted to secure high quality grid generation necessary for the reliable numerical simulation. The experimental results such as static head, brake horse power and efficiency of the centrifugal pump were compared with the numerical analysis results. The simulated results are good agreement with the experimental results less 5% error.