Open AccessInfluence of parameters valuing on calculation results in reservoir sediment mathematical model
Author(s) -
Chenglong Deng,
Junqiang Xia,
Rui Long,
Yuan yuan
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/794/1/012015
Subject(s) - siltation , sedimentation , hydropower , sediment , deposition (geology) , environmental science , flocculation , flow (mathematics) , erosion , saturation (graph theory) , hydrology (agriculture) , geotechnical engineering , mathematics , geology , environmental engineering , engineering , geomorphology , geometry , electrical engineering , combinatorics
Sediment deposition in the reservoir not only has a serious impact on the service life of the reservoir and the existence value of the hydropower station, but also profoundly affects the erosion and siltation of the downstream riverbed and the safety of the dam. Being an important method to the research of sedimentation problem, calculation accuracy of mathematical model is a subject worthy of continuous discussion. In this paper, influence of some key parameters of the model are analysed. The calculation results show that the changes of dry density, water flow sedimentation parameters and saturation recovery coefficient have significant influence on the calculation results, and the change of dry density has the greatest influence, while the effect of flocculation is the weakest. It is worth noting that when considering these influencing factors, this paper adopts a simplified processing method, and the mechanism of each parameter is complex, and further research is needed.