超音速軸流速度で作動する三次元振動翼列の二重線形理論による非定常空気力解析

概要

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The double linearization theory is extended to a three-dimensional straight cascade between parallel-plane end walls operating at supersonic axial velocity. Numerical examples are presented to show unsteady aerodynamic responses and flutter boundaries in correlation with cascade parameters. The three-dimensional effects are evaluated by comparing them with the strip theory predictions. To attain a large steady loading on the stability boundary of the first bending vibration, it is advantageous to design blades with angle of attack and camber decreasing from hub to tip. The three-dimensional effects are small, and the strip theory was found to be a useful method for estimation of the unsteady aerodynamic work of the three-dimensional straight cascade.
社団法人日本機械学会の論文
1993-11-25