节点文献
总能量守恒与辛几何算法
On the Total Energy Conservation and the Symplectic Algorithm
【摘要】 以正压大气原始方程为例子,以总能量守恒为主线,介绍动力保守系统两类重要算法———总能量守恒算法和辛几何算法,讨论了两者之间的关系,并给出具体的算例,说明两类算法的有效性.
【Abstract】 Based on the total energy conservation, two important algorithms, the total energy conservation algorithm and the symplectic algorithm, are established for the sphericalshallow water equations. Also, the relation of two algorithms is analyzed; and the numerical tests show the efficiency of the algorithms.
【关键词】 大气海洋方程;
保守系统;
总能量守恒;
Hamilton系统;
辛格式;
【Key words】 atmospheric and oceanic equations; conservative system; total energy conservation; Hamiltonian; symplectic scheme;
【Key words】 atmospheric and oceanic equations; conservative system; total energy conservation; Hamiltonian; symplectic scheme;
【基金】 国家重点基础研究发展规划项目(G19990 3 2 80 1);国家杰出青年科学基金项目(4982 5 10 9);国家自然科学基金(49975 0 2 0)
- 【文献出处】 中国科学院研究生院学报 ,Journal of the Graduate School of the Chinese Academy of Science , 编辑部邮箱 ,2003年01期
- 【分类号】P433
- 【被引频次】1
- 【下载频次】238