| 剖面二维悬移质泥沙输移方程的分步解法 |
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| 引用本文： | 夏军强,王光谦.剖面二维悬移质泥沙输移方程的分步解法[J].长江科学院院报,2000,17(2):14-17. |
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| 作者姓名： | 夏军强 王光谦 |
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| 作者单位： | 清华大学水电系，北京 1000 |
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| 基金项目： | 国家自然科学基金，水利部联合资助项目 |
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| 摘 要： | 利用空间概念上的分步法，对剖面二维悬移质泥沙 输移方程，提出两种不同的计算格式。通过比较分析后认为：在对流项较弱时，可采用隐格 式计算；在对流项占优时，为消除解的振荡，应采用显隐混合格式。另外，还利用实测资料 验证了上述计算格式。
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| 关 键 词： | 悬移质泥沙 分步法 对流扩散 |
Fractional steps method for solving vertical 2-D suspended sediment transport equation |
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| XIA Jun-qiang,WANG Guang-qian.Fractional steps method for solving vertical 2-D suspended sediment transport equation[J].Journal of Yangtze River Scientific Research Institute,2000,17(2):14-17. |
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| Authors: | XIA Jun-qiang WANG Guang-qian |
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| Abstract: | The method of fractional steps is used to split vertical 2 D suspended sediment transport equation. Then two different computation schemes are presented. Through comparison and analysis, it is suggested that: as the advection term is poor, the implicit scheme is proper; as the advection term is preponderant, the implicit explicit hybrid scheme is very reasonable. Experimental results are used to verify two computation schemes, and good agreements are obtained. |
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| Keywords: | suspended sediment fractional steps method advection diffusion |
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