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| 水流挟沙力分析与探讨 | |
| 引用本文： | 李瑞杰,罗锋,周华民.水流挟沙力分析与探讨[J].海洋湖沼通报,2009(1). |
| 作者姓名： | 李瑞杰 罗锋 周华民 |
| 作者单位： | 1. 河海大学海岸灾害及防护教育部重点实验室,江苏,南京,210098;河海大学物理海洋研究所,江苏,南京,210098 2. 河海大学海岸灾害及防护教育部重点实验室,江苏,南京,210098 3. 河海大学物理海洋研究所,江苏,南京,210098 |
| 摘 要： | 水流挟沙力是悬沙输运计算中非常重要的问题之一,其计算形式常采用基于重力理论的经验和半经验公式.本文针对目前广泛采用的2种挟沙力关系式,选用4组实验水槽数据和2组天然河道实测资料分别讨论其关联性.结果表明,不论指数m在其取值范围内取何值,2个表达式皆存在一定的函数关联性.且当指数m取1和2/3时,直接表现出很强的线性关联.在挟沙力计算中采用流速的平方关系式,物理意义清晰,形式简单.在实际应用时,适当选取系数,挟沙力采用形式简单的平方关系式是完全可行的. |
| 关 键 词： | 悬沙 挟沙力 含沙量 流速 |
STUDY ON THE FLOW INDUCED SEDIMENT CARRYING CAPACITY |
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| LI Ruijie,LUO Feng,ZHOU Huamin.STUDY ON THE FLOW INDUCED SEDIMENT CARRYING CAPACITY[J].Transaction of Oceanology and Limnology,2009(1). | |
| Authors: | LI Ruijie LUO Feng ZHOU Huamin |
| Institution: | 1.Key Laboratory of Coastal Disaster and Defence;Ministry of Education;Hohai University;Nanjing 210098;China;2.Institute of Physical Oceanography;Nanjing 210098 |
| Abstract: | The flow induced sediment carrying capacity is a very important factor for the calculation of suspended sediment transport.Its wildly adopted expressions are mostly experimental and semi-experimental forms based on the gravity theory.By comparing and analyzing 4 sets of experiment data and 2 sets of natural river data,the relation between two kinds of wildly adopted sediment carrying capacity formulae are discussed.The results show that there is a function correlation whatever the power m is.For power m tak... |
| Keywords: | suspended sediment sediment carrying capacity suspended sediment concentration current velocity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |