变动回水区二维泥沙数学模型研究  

Research on Numerical Simulation of 2-D Sediment-circulating Flow

作　　者：范勇[1] 卢金友[2] 

机构地区：[1]河海大学水利水电学院,南京210098 [2]长江科学院河流所,武汉430010

出　　处：《武汉理工大学学报》2009年第10期81-84,136,共5页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50879006);水利部江湖治理与防洪重点实验室开放研究基金(R2007-11)

摘　　要：国内外已建成的水利枢纽工程运用实践表明,水库变动回水区的泥沙问题,将随着水库运用年限的增长而日趋严重,上游来沙条件改变后,变动回水区的泥沙淤积情况将会发生相应变化。对于不同的淤积数量和淤积部位,其适宜的治理方法也不相同,非常有必要开展变动回水区的研究。针对回流的运动特点,建立了二维泥沙数学模型,对回流区水流运动特性进行了模拟分析。计算结果与实测数据吻合良好。At home and abroad have been completed and the application of water-control project shows, Changes in the reservoir backwater area of the sediment will be to use the reservoir as the number of years and the growth of the increasingly serious, To change the conditions of the upper reaches of the sand, changes in the backwater areas of sediment deposition will be corresponding changes. For a different amount of salutation and sedimentation site and its appropriate treatment is not the same as is the need for change in the backwater areas of research. Base on the property of circulating flow, 2-dimension sediment mathematic model is established, the characteristic of square circulating flow is simulated and analyzed. The numerical results are in good agreement with the experimental data, and it is manful both in academic and practical in project.

关 键 词：汇流区 二维数值模拟 抉沙力 

分 类 号：TV149.2[水利工程—水力学及河流动力学]