遠心圧縮機用羽根付きディフューザ内の流れと性能 : ベーン取付け角をパラメータとした解析

概要

論文の詳細を見る
The effect of a vane setting angle on the performance of a vaned diffuser was analyzed with CFD code and experimental results. The calculated result shows that the performance of the vaned diffuser is not dependent on the difference of vane setting angle under the condition that relates to the flow angle upstream of the vaned diffuser. The relationship between the flow angle upstream of the diffuser and the diffuser vane setting angle, which has little effect on the diffuser performance, was derived from the tests results. According to the derived relationship, the difference of vane setting angle from 4 to 5 degrees does not affect the diffuser performance or the efficiency of centrifugal compressor up to peripheral Mach number of 1.43. However, it should be noted that the diffuser vane setting angle affected surge flow rate.
ターボ機械協会の論文
2004-09-10