| 摘要: |
| 根据清水下泄引起的河床变形过程的模型试验，运用泥沙连续方程，引入了以反映瞬时冲淤量的特征速度概念，导出了推移质输沙的平衡过程方程。再结合水流的圣维南方程、河床变形方程，对试验结果进行了数值模拟。 |
| 关键词: 推移质,清水下泄,输沙率,模型试验,数值模拟 |
| DOI： |
| 分类号:TV85 |
| 基金项目: |
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| Model test and numerical simulation of bed deformation under release of clear water |
|
Tong Zhongshan, Ding Daoyang
|
|
Nanjing Hydraulic Research Institute
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| Abstract: |
| According to the model experiments of bed deformation process resulting from release of clear water, by the use of sediment continuity equation, introduced the concept of characteristic velocity reflecting instantaneous amount of scour and siltation, derived the equilibrium process equation of bed load transport. Furthermore, combined with the St. Venant equation for water-flow, bed deformation equation, numerical simulation of experimental results were carried out. |
| Key words: bed load, release of clear water, sediment transport rate, model test,numerical simulation |
