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정희권(H.K. Jeong),권장혁(J.H. Kwon) 한국전산유체공학회 1995 한국전산유체공학회 학술대회논문집 Vol.1995 No.-
In the present paper, a method of nearly orthogonal grid generation in an arbitrary simply-connected 3D domain will be presented. The method is a new direct and non-iterative scheme based on the concept of the decomposition of the global orthogonal transformation into consecutive mapping of a conformal mapping and an auxiliary orthogonal mapping, which was suggested by Kang and Leal [4]. In our numerical scheme. Kang and Leal's method is extended from 2D problems to 3D problems while the advantage of the noniterative algorithm is maintained. The essence of the present mapping method is that an iterative scheme can be avoided by introducing a preliminary step. This preliminary step corresponds to a conformal map and is based on the boundary element method(BEM). This scheme is applied to generate several nearly orthogonal grid systems which are orthogonal at boundaries.
<RAE "A" 날개-축대칭 동체> 비행체 형상에 대한 천음속 점성 유동의 수치적 연구
임예훈(Y.H. Im),장근식(K.S. Chang),정희권(H.K. Jeong),권장혁(J.H. Kwon),박민우(M.W. Park) 한국전산유체공학회 1997 한국전산유체공학회 학술대회논문집 Vol.1997 No.-
The Computer code KAIST-ADD LUFUNS has been developed to solve 3D compressible turbluent flow. This method employs Harten-Yee's modified upwind scheme in the explicit part and Steger-Warming Splitting in the implicit part. Flow past RAE wing-body aircraft has been computed for three different flow conditions. The results have shown good comparision with the experimental data. Baldwin-Lomax turbluence model is used for this computer code.