二次元振動翼に働く流体力に関する研究

概要

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A linear theory of two-dimensional thick wing oscillating in a uniform flow is presented. The effects of the steady flow on the boundary condition on body surface is taken into account exactly. It is assumed in the theory that the wake vorticity sheds along straight line from the trailing edge with the uniform velocity, and it makes the problem very simple. The distribution of unsteady pressure on the wing and the resulting hydrodynamic forces are obtained by solving the Boundary Integral Equation with respect to velocity potential. Calculated results of the unsteady lift and moment acting on wings heaving in a steady flow are compared with those of model tests in a circulating water tank. These results show that the unsteady lift forces acting on the wing heaving in a steady flow is not much affected by the thickness and attack angle of the wing.
社団法人日本船舶海洋工学会の論文
1988-08-25