境界要素法を用いた三次元翼まわりの流れ解析における数値的問題点に関する一考察

抄録

In the boundary element method, accuracy in integration of singular integrands ∂/∂n(1/r) and 1/r is very important, especially in the case of a very thin, close boundary with complex curvatures, such as a marine propeller. This paper proposes a method for accurate integration of singular integrals in case of the complex boundary mentioned above. The effects induced by the location of wake, length and mesh division of wake for the analysis of lifting body are also presented.