| 河流网引水分沙的动力学瞬态模拟 |
| |
| 引用本文： | 曹世峰,王旭明,霍杰,郝睿.河流网引水分沙的动力学瞬态模拟[J].科技导报(北京),2009,27(16):60-65. |
| |
| 作者姓名： | 曹世峰 王旭明 霍杰 郝睿 |
| |
| 作者单位： | 宁夏大学物理电气信息学院,银川,750021 |
| |
| 基金项目： | 国家自然科学基金项目，教育郜新世纪优秀人才支持计划 |
| |
| 摘 要： | 汇流是河网上最基本的自然过程.引流则通常与水利工程相关.汇流和引流都会引起水沙变化,进而影响河道冲淤状态的变化.相较而言,对河道冲淤状态的研究更具现实意义.通过建立基于汇流-引流的河流网泥沙动力学模型,分析了在某一河段引流对其下游河段的影响,探讨了水沙变化与河道的冲淤调整.模型的模拟结果能够定性再现黄河上引流与河道冲淤之间的关系,即"引流增淤".瞬态过程显示了冲淤动力学对分流比的强烈依赖:显示了冲淤动力学对水沙条件的复杂依赖.本研究发现了冲淤量沿程分布的指数标度律,获得了关于河网泥沙输移动力学的一些新理解.
|
| 关 键 词： | 河流网 分流比 流量 含沙量 冲淤量 |
Simulation of Transient Sediment Transport Processes in a River Network with Water Diversions |
| |
| CAO Shifeng,WANG Xuming,HUO Jie,HAO Rui School of Physics , Electric Information Science,Ningxia University,Yinchuan ,China.Simulation of Transient Sediment Transport Processes in a River Network with Water Diversions[J].Science & Technology Review,2009,27(16):60-65. |
| |
| Authors: | CAO Shifeng WANG Xuming HUO Jie HAO Rui School of Physics Electric Information Science Ningxia University Yinchuan China |
| |
| Institution: | CAO Shifeng,WANG Xuming,HUO Jie,HAO Rui School of Physics , Electric Information Science,Ningxia University,Yinchuan 750021,China |
| |
| Abstract: | The confluence of streams is a fundamental process in natural river networks, while a diversion is often related to hydraulic projects.Both the confluence and diversion will cause changes of the discharge, and result in variations of the Quantity of Erosion or Sedimentation(QES).The latter is of practical significance.In this paper, a sediment transport dynamic model, based on the consideration of streams confluence and/or diversion, is proposed to investigate the influence of water diversion on the mainstr... |
| |
| Keywords: | river network diverting ratio of water flow discharge sediment concentration quantity of erosion or sedimentation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
