基于二维水沙模型的水库泥沙冲淤特性数值研究

Numerical Study on Sediment Scouring Deposition Characteristics in Reservoir Based on Two Dimensional Model of Water and Sediment

为了提升水库运行功能,需要做好泥沙冲淤特性研究。根据研究现状,阐明了清水试验工况,并分析了试验结果,表明工况设置是合理的。随后对布仑口水库进行淤积试验,并重点从回水变化、淤积推进展开研究。讨论了实测回水与淤积的耦合关系,发现二者存在某种线性关系。研究结果表明,本试验较好地反映了一般水库泥沙淤积特性,研究方法和结论能够对水库泥沙预测和清理工作提供有价值的参考。

In order to improve the operation function of reservoir,the research on the characteristics of sediment scouring and deposition is required. According to the present situation of the research,the water test conditions are clarified,and the test results are analyzed. Subsequently,the reservoir sedimentation experiment was carried out,and the research on the change of the backwater and the advance of the deposition was carried out. The coupling relationship between the measured backwater and the deposition is discussed,and it is found that there is a linear relationship between the two. The research results show that this test can better reflect the characteristics of reservoir sediment deposition,and the research methods and conclusions can provide valuable reference for the prediction and cleaning of reservoir sediment.