Numerical analysis of rotating stall characteristics in vaneless diffuser with large width-radius ratio

2008, Volume 2, Issue 4

Abstract

Keywords

Related Research

Frontiers in Energy >> 2008, Volume 2, Issue 4 doi: 10.1007/s11708-008-0071-9

Numerical analysis of rotating stall characteristics in vaneless diffuser with large width-radius ratio

School of Mechanical Engineering, Shanghai Jiao Tong University;

Available online: 2008-12-05

HTML18 PDF 1 Collect 0

Next Previous

Abstract

A two-dimensional model, where the influence of wall boundary layers is neglected and inlet jet-wake velocity patterns are prescribed, was applied to simulate one vaneless diffuser with a large width-radius ratio. The impact of diffuser length, impeller blade number, etc. on the rotating stall was analyzed. Computational results show that a different mechanism does exist for diffusers with large width-radius ratios. Comparison with related conclusions and references is supportive of the model.

Keywords

Comparison ; Computational ; two-dimensional ; influence ; different mechanism

Related Research