有限ピッチアクチュエータダクト法による軸流動翼の三次元逆問題の解法

概要

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A fully three-dimensional inverse solution to the axial-flow rotor of a constant hub to tip ratio by means of the finite-pitch actuator duct method for inviscid and incompressible flow is presented. The blade is expressed by a vortex sheet and a source sheet superposed on the mean surface, and the blade shape is determined to satisfy the specified thickness and loading distributions for free-vortex type flow. Two-dimensional numerical calculations are performed by modifying the present method in order to show the difference between the blade shape obtained by the two-dimensional inverse method and that obtained by the three-dimensional inverse method. Three-dimensional numerical calculations show the influences of the stacking position and the blade spanwise pressure distributions. The direct solutions for the designed two-dimensional and three-dimensional rotors are calculated in order to examine the numerical accuracy of the present inverse calculation.
一般社団法人日本機械学会の論文
1988-03-25