构造了一个新的非协调的矩形单元,分析了单元对奇异摄动Darcy-Stokes问题的稳定性,给出了有限元误差分析结果.用数值实验验证了理论分析结果.
We construct a new nonconforming rectangle finite element which is stable and convergent for the singular perturbed Darcy-Stokes problem,and obtain the error estimate result.At last,we carry out the numerical test which coincides with our theoretical analysis.