Study of Small Flow Rate High Pressure Ratio Backswept Impeller Design

摘要：

In order to investigate the small flow rate high pressure ratio backswept impeller, a simple mean-line approach is established, and the corresponding FORTRAN code is developed. Based on these code parameters, four impellers are initialized with desired isentropic efficiency of 0. 92 and total pressure ratio of 5.0, whose flow rate is vary from lkg/s to 4kg/ s. Geometries of these impellers are constructed in the module of Numeca Autoblade manually with S-shaped blades. Three dimensional CFD simulations are conducted after geometry modeling. Analysis the results, it demonstrates that all impellers achieved design targets with zero tip clearance at designed point.

关键词： one-dimensional design geometry fit S-shaped blade

作者: GAO Li-min XIE Jian ZHU Qi-peng MIAO Fang

作者单位: School of Power and Energy, Northwestern Polytechnical University, Xian,China

会议类型: 国际会议

会议名称: 4th International Symposium on Jet Propulsion and Power Engineering(第四届喷气推进与动力工程国际会议 ISJPPE2012)

会议地点: 西安

会议语种:英文

页码: 46-50

在线出版日期: 2012-09-10（万方平台首次上网日期，不代表论文的发表时间）