【摘要】 用有限元方法分析Stokes问题难点在于单元必须满足离散的Babuska-Brezzi条件,在文中构造了一个非协调矩形有限元,证明该元对Stokes问题满足离散B-B条件,并且对速度和压力具有二阶收敛性。更多还原

【Abstract】 The main difficulty in the analysis for the Stokes problem is to prove that the discrete B-B condition is valid.In this paper,a nonconforming rectangular finite element is presented,which satisfies the discrete BB condition for the Stokes problem and has two order convergence rate for the velocity and pressure.更多还原