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采用既有良好稳定性又有较高精度的 Ｓ Ｕ Ｐ Ｇ 有限元方法，通过数值求解涡量－流函数形式的不可压缩流 Ｎ Ｓ方程组，模拟了大攻角翼型在高 Ｒｅ 数下几种典型情况的非定常绕流流场，同时验证了 Ｓ Ｕ Ｐ Ｇ 有限元方法在求解对流占优的二维非定常对流－ 扩散方程时的有效性。
The S U P G finite element method with good stability and high accuracy is adopted to solve the incompressible flow NS equation in the form of vorticity-flow function by numerical simulation. The high angle of attack Several typical cases of unsteady flow field, and verify the validity of the S U P G finite element method in solving convection-dominated two-dimensional unsteady convection-diffusion equations.