| 黄才安,杨志达.泥沙输移与水流强度指标[J].水利学报,2003,34(6): |
| 泥沙输移与水流强度指标 |
| Sediment transport and flow intensity indexes |
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| DOI： |
| 中文关键词: 水流强度指标 输沙强度 实测输沙资料 相关分析 单位水流功率 |
| 英文关键词: flow intensity sediment transport intensity correlation analysis experiment and prototype data unit stream power |
| 基金项目: |
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| 中文摘要: |
| 利用大量的实验室水槽和天然河道输沙资料，研究了各种水流强度指标与泥沙输沙强度的相关关系。结果表明，水流功率、平均流速、沙粒切应力能较好地预测输沙率而单位水流功率、佛汝德数、Velikanov参数则较好地预测输沙浓度。其中单位水流功率与输沙浓度的关系最佳。 |
| 英文摘要: |
| The correlations between various flow intensity indexes and sediment transport were analyzed according to 3391 sets of data both from lume experiment and prototype observation. The result shows that the tream power, mean velocity and grain shear stress are effective in predicting sediment transport rate and the unit stream power, Froude number and Velikanov parameter are better indexes for predicting sediment concentration. Among them, the correlation coefficient between unit stream power and sediment concentration is the best. |
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