首页 | 本学科首页   官方微博 | 高级检索  
     

空腔回流区水沙特性的计算分析
引用本文:董耀华.空腔回流区水沙特性的计算分析[J].泥沙研究,1999(2):34-39.
作者姓名:董耀华
作者单位:长江科学院
基金项目:国家自然科学基金委员会和中国长江三峡工程开发总公司联合资助
摘    要:建立了回流区水深平均平面二维水流泥沙数学模型,提出了平衡输水模式下回流区泥沙淤积计算方法;工江科学院空腔回尼沙淤积水槽试验数据,验证了回流区泥沙淤各计算方法的可行性和精度;通过数模计算分析,一方面加深了空腔回流区环流结构及含沙量分布的机理认识,另一方面研究了模型主炫对回流区水沙特性的影响。

关 键 词:空腔回流区  水沙数模  泥沙淤积  河道水流

Calculation and Analysis on Flow and Sediment Transport in Cavity Recirculation
Dong Yaohua.Calculation and Analysis on Flow and Sediment Transport in Cavity Recirculation[J].Journal of Sediment Research,1999(2):34-39.
Authors:Dong Yaohua
Affiliation:Yangtze River Scientific Research Institute
Abstract:A\ 2-D depth average flow and sediment mathematical model for cavity flow is established,and a method of calculation for sediment deposition of recirculation is proposed in this paper. Feasibility and accuracy of the method has been verified by using sedimentation experimental data of cavity flume from the Yangtze River Scientific Research Institute. By means of calculation and analysis of the mathematical model, realization of recirculation structure and silt concentration distribution in cavity flow has been deepened in mechanism. On the other hand, effects of distortion ratio of physical model on flow and sediment transport of recirculation have been researched.
Keywords:Cavity recirculation  2-D flow and sediment mathematical model  recirculation structure  sediment deposition  distortion ratio of physical model  turbulent model  
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号