| 两坝间河段通航水流条件的三维数值模拟 |
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| 引用本文： | 姚仕明,王兴奎,张超,张大伟.两坝间河段通航水流条件的三维数值模拟[J].水科学进展,2007,18(3):374-378. |
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| 作者姓名： | 姚仕明 王兴奎 张超 张大伟 |
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| 作者单位： | 1.清华大学水沙科学教育部重点实验室, 北京, 100084; |
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| 摘 要： | 三峡工程建成后,三峡-葛洲坝之间的河段是宜昌至重庆河段船舶航行最困难的航段之一.建立了该河段的三维水流数值模型,计算三峡不同下泄流量下的三维流场,并根据计算结果与适航条件分析其适航区域.研究结果表明,当下泄流量不大于25 000 m3/s时,两坝间河段基本能满足万吨级船队的通航水流条件;当流量大于此值时,将会出现碍航区域,且随流量的增加,万吨级船队通航水流条件逐渐恶化.若适当提高通航标准,则通航流量可加大到45 000 m3/s.
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| 关 键 词： | 两坝间河段 三维水流数值模拟 通航水流条件 适航区域 |
| 文章编号： | 1001-6791（2007）03-0374-05 |
| 收稿时间： | 2006-01-18 |
| 修稿时间： | 2006-01-182006-05-22 |
3-D numerical simulation of navigable flow conditions between Three Gorges Dam and Gezhouba Dam |
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| YAO Shi-ming,WANG Xing-kui,ZHANAG Chao,ZHANG Da-wei.3-D numerical simulation of navigable flow conditions between Three Gorges Dam and Gezhouba Dam[J].Advances in Water Science,2007,18(3):374-378. |
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| Authors: | YAO Shi-ming WANG Xing-kui ZHANAG Chao ZHANG Da-wei |
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| Affiliation: | 1.Key Laboratory for Water and Sediment of Ministry of Education, Tsinghua University, Beijing 100084, China;2.Yangtze River Scientific Research Institute, Wuhan 430010, China |
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| Abstract: | The reach between Three Gorges Dam and Gezhouba Dam is one of the most difficult waterways for navigation from Yichang to Chongqing. With the establishment of the numerical model for 3-D flow,the 3-D flow field in this reach is calculated and the navigable area is analyzed according to the calculated results and navigable conditions. The result shows that this reach can basically satisfy the navigable conditions of the 10-thousand-tons fleet when the discharge is no more than 25 000 m^3/s; on the contrary, danger area will appear and navigable conditions will be deteriorated as the discharge increases. If the standard for navigation can be properly raised, the flux for navigation shall increase to 45 000 m^3/s. |
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| Keywords: | reach between two dams 3-D numerical simulation of flow navigable flow conditions navigable area |
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