채널내를 비행하는 날개의 공력해석

초록

An indirect boundary element method is developed for the aerodynamic analysis of wings flying in the channel. An integral equation is obtained by applying Greens theorem on all surfaces of the fluid domain. Wings surfaces and nonplanar ground surface are modeled with constant strength dipoles and source panels. Wake sheets are represented by constant strength dipoles. The unknown strengths of potentials are determined by inverting the aerodynamic influence coefficient matrices constructed by using the no penetration conditions on the surfaces and the Kutta condition at the trailing edge of the wings. The gap between a wing and a channel wall increases the lift.