基于椭圆型偏微分方程生成二维NACA0012翼型的O型网格并求解流场(Generation of O-grid of two-dimensional NACA0012 airfoil and solution of flow field based on elliptic partial differential equation)

用用五点差分算法结合多重网格算法求解偏微分方程；用五点差分算法结合多重网格算法求解偏微分方程。(Using five-point difference algorithm combined with a multigrid algorithm to solve partial differential equations; Using five-point difference algorithm combined with multigrid algorithm to solve partia