유선좌표계를 사용한 이차원 익형의 실속에 대한 부분포물형 Navier-Stokes 해석(Ⅰ) : 격자계 생성 및 층류동장 해석

Abstract

Using conformal mapping, several orthogonal curvilinear coordinates of 0-. H- and C-type are generated for an arbitary airfoil at incidence. The partially parabolic Navier-Stokes equations are solved for the laminar flow about an airfoil at incidence in the streamline coordinates. By comparing the result with that obtained in non-streamline but still orthogonal coordinates, it has been found that the present procedure is much more efficient and accurate. The equations written in this coordinate system are shown to be least prone to the numerical error.