【摘要】 <正> 1.引 言 对流占优扩散问题的数值模拟,在科学工程计算中有着重要而广泛的应用.为有效数值求解该类问题,自20世纪80年代以来,人们开始寻求、建立有别传统计算方法的非标准数值方法.更多还原

【Abstract】 In this paper, two kinds of Finite Volume-Streamline Diffusion Finite Element methods (FV-SD) for steady convection dominated-diffusion problem are presented and the stability and error estimation for the numerical schemes considered are established in the norm stronger than L2-norm. The theocratical analysis and numerical example show that the schemes constructed in this paper are keeping the basic properties of Streamline Diffusion (SD) method and they are more economical in computing scale than SD scheme, and also, they have same accuracy as FV-Galerkin FE method and better stability than it.更多还原