| 李致家.通用一维河网不恒定流软件的研究[J].水利学报,1998,29(8):0014-0019 |
| 通用一维河网不恒定流软件的研究 |
| Study on universal software for calculation of 1-D unsteady flow in Channel network |
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| DOI： |
| 中文关键词: 通用模型 河网 不恒定流 迭代法 |
| 英文关键词: universal model channel network unsteady flow iterative method |
| 基金项目: |
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| 摘要点击次数: 1515 |
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| 中文摘要: |
| 本文讨论了通用一维河网不稳定流数值计算软件的数学物理基础：(1)扩展的圣维南方程组及其有限差分方程的牛顿迭代方程组；(2)特殊结点的特殊方程及迭代方程；(3)边界条件和初始条件；(4)系统方程的装配和特殊的高斯消元法.最后用一个例子来与其它的软件进行比较。 |
| 英文摘要: |
| The physical and mathematical background of the numerical method for one-dimensional unsteady channel flow are discussed in this paper, including the implicit finite difference equations of the extended St. Venant equations and Newton-Raphson iterative method, the special equations suitable for special nodes and iterative equations, the boundary and initial conditions, the assembling of system matrix and the Gaussian elimination matrix solution techniques with the sparse matrix to be considered. An example is given to compare with other software. |
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