海水入浸问题的数学模型是定义在二维有界区域上的耦合抛物型偏微分方程组.分别用有限元法和特征有限元法离散压力方程和饱和度方程,建立模型新的特征有限元逼近程序,得到逼近解的最优阶H^1-模误差估计.
For simulation of seawater intrusion problem, the pressure equation is approximated by finite element method and the concentration equation is approximated by characteristic-finite element method. New discrete scheme is presented. Optimal rate H^1-norm error estimates are derived.