A nonconforming rectangular finite element is presented, which satisfies the discrete B-B condition for the Stokes problem. And the element has two order convergence rate for the velocity and pressure.
基金Foundation item: Supported by the National Natural Science Foundation of China(10771198, 10590353) Supported by the Doctor Foundation(2008BS013) Supported by the Natural Science Foundation of Henan Province (682300410200)
文摘A nonconforming rectangular finite element is presented, which satisfies the discrete B-B condition for the Stokes problem. And the element has two order convergence rate for the velocity and pressure.