Calculation of wing-body pressures in incompressible flow using Green's function method

\0 0 3 A > /, 0 IV In the present paper, the finite element technique is applied to the calculation of three-dimensi onal steady incompressible potential flow around a wing-body combination, the main emphasis being placed upon the study of the aerodynamic interference effect between the wing and the body. The formulation of the problem is made in the form of an integral equation following Morino's method. By the use of the finite element technique combined with the collocation method, this integral equation is reduced to a set of linear algebraic equations. By solving this set, the pressure distribution over the surface of the wing-body combination is obtained. Wind tunnel experiments have been conducted at National Aerospace Laboratory of Japan in pace with the numerical analysis. It has been found that agreement between the numerical results obtained by the present method and those obtained by the wind tunnel experiments is very encouraging.