构造了两个非协调有限元,对Stokes问题满足离散B-B条件,单元对速度和压力具有二阶收敛性,数值实验验证了理论分析结果.
Two nonconforming finite elements which satisfy the discrete B-B condition for the Stokes problem are presented.The elements have two order of convergence for the velocity and pressure. Some numerical results,which coincide with the theoretical analysis,are given.