低速ns方程 low speed ns equation

不可压NS方程 unsteady incompressible Navier-Stokes equation

NS方程数值解 numerical calculation of NS equation

广义ns方程组 generalized ns equations

ns方程数值模拟 numerical simulation by ns equations

不可压缩流体ns方程组 incompressible fluid ns equations

NS方程数值求解 numerical solution of NS equation

二维NS方程 Two-dimensional Navier-Stokes Equations