| 摘要: |
| 将基于稀疏矩阵通用的按行存储方法的广义最小化残差算法应用于大型河网数值计算中，使大型河网的节点编号更具任意性，只需保证节点编号前后的一致性，而无需优化节点编码，实例计算结果表明，该算法精确、高效。 |
| 关键词: 非恒定流 河网 GMREs算法 稀疏矩阵 数值计算 |
| DOI： |
| 分类号:TV133.2 |
| 基金项目: |
|
| Application of GMRES algorithm in numerical computation of large-scale river network |
|
CHENG Yang,WANG De-guan,LAI Xi-jun
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| Abstract: |
| The general minimum residual algorithm (GMRES) based on the storage scheme by rows for an unstructured sparse matrix is applied to the numerical calculation of a large-scale river network. This algorithm helps the node number of the large-scale river network to be more arbitrary; the node number is not to be optimized and is only to keep consistent. Calculation results of an example show that the algorithm is accurate and efficient. |
| Key words: unsteady flow,river network,GMRES algorithm,sparse matrix,numerical calculation |
