摘要
把多步差分和特征有限元进行耦合,从而利用多步特征有限元方法对二维水沙数学模型进行了数值模拟,并给出了相应的误差分析及数值算例.
In this paper, multistep differences method and characteristic finite element method method are coupled, then the flat non-homogeneous current and silt sedimentation model is simulated by the multistep differences-characteristic finite element method, and corresponding error estimates are derived. At last, numerical experiments are presented to justify the theoretical analysis.
出处
《应用数学学报》
CSCD
北大核心
2013年第5期870-880,共11页
Acta Mathematicae Applicatae Sinica
基金
国家自然科学基金(10971254)
山东省自然科学基金(ZR2009AZ003)资助项目
关键词
多步差分
特征有限元
水沙问题
multistep difference
characteristic finite element
current and silt sedimentation model
