翼列特性のスパン方向変化を考慮した旋回失速の三次元線形解析(〔流体工学, 流体機械〕)

概要

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A 3-D linear analysis of rotating stall is carried out to clarify the effects of spanwise distribution of cascade characteristics. An actuator disk model of annular cascade is employed. A linear spanwise distribution of the performance slope is considered to examine the effects of the threedimensionality in the cascade characteristics. Many characteristic solutions were found corresponding to various kinds of radial mode. It was found that the 0th order radial mode is more unstable than higher order modes. It was also found that uneven spanwise cascade characteristics distribution makes the 0th mode more unstable, and alters the 0th order mode so that the amplitude of the disturbance becomes larger at radial locations where the positive slope of the performance is larger.
一般社団法人日本機械学会の論文
1998-10-25