A Numerical Analysis for the Lifting Surface Theory of a Marine Propeller

Abstract

The hydrodynamic characteristics of a marine propeller in uniform flow are evaluated in relation with the geometry and the working condition. The problem is reduced to a two-dimensional integral equation by means of the lifting surface theory. The calculating method, developed by Dr. Hanaoka for solving the equation, is used in the present paper. Numerical examples, illustrated in the present paper, verify the usefullness of his method. As for the lift distribution near the tip of a blade, however, the examples show the difficulty in accurate evaluation.