关键词: 跨音速流, 数值计算, 机翼, 翼身组合体, 位流

Abstract: A computer code has been developed for analyzing the transonic flow over wings or wing/body combinations using the nonconservative full potential equation according to Baker's highly efficient finite difference algorithm. A detailed, fully implicit AF3, approximate factorization (AF) iteration scheme, which is proven to have fast convergence, is constructed in body-fitted "C-H" type grid, which is different from the mesh topology that Baker used for this scheme. The parts of the transonic solution in the program can provide the analyses not only to flow problems of wings but also for the calculations of transonic flows over wing/body combinations, due to the utilization of a tensor form for the nonconservative full potential equation in an arbitrary curved coordinate system.

Key words: transonic flow, numerical calculation, wings, wing-body combinations, potential flow