摘要
讨论对流扩散方程的一种迎风Cell-centered混合元方法,在不同的矩形网格剖分下,分别用常量浓度元与常量通量元逼近原问题的解,得到了浓度与通量的一阶L2模误差估计,并通过数值算例验证了理论分析结果的正确性。
A upwind cell-centered mixed method is discussed for convectiondiffusion problems, which uses different rectangular grids called the primal and dual partitions. The concentration is cell-centered, and the flux is cocell centered. Optimal convergence results are derived in the L2 norm, which is proved to be correct according to numerical examples.
出处
《科学技术与工程》
2009年第16期4592-4596,共5页
Science Technology and Engineering
基金
国家自然科学基金(10270168
40581119)
山东省自然科学基金(Z2006A02
Y2007A14)
山东省高等学校优秀青年教师国内访问学者项目资助
关键词
对流扩散方程
迎风
集中质量
convection-diffusion problem upwind cell-centered
