水资源与水工程学报2017，Vol.28Issue(5)：186-191,6.DOI:10.11705/j.issn.1672-643X.2017.05.31
云南某水电站水库泥沙淤积数值模拟研究
Numerical modeling of sediment deposition of reservoir in a hydropower station in Yunnan Province
洪振国 1李建伟1
作者信息
- 1. 云南省水利水电勘测设计研究院,云南昆明650021
- 折叠
摘要
Abstract
Siltation caused the reservoir water level elevation, which occupied the regulation storage ca-pacity and resulted in the loss of the reservoir storage capacity.Because of the abrasion of the hydrotur-bine caused by the harmful particles,the operation efficiency of the hydroturbine dropped,the output and annual power generation decreased,and the maintenance interval was shortened while the cost increased. Taking a hydropower station in Yunnan Province as an example,the unsteady one-dimensional model is used to simulate the sediment pattern, sediment erosion and deposition, and sediment concentration in the reservoir area.The results show that the reservoir sedimentation patterns is delta sedimentation,and the sediment deposition has great effect on regulation storage capacity.The sediment through the hydro-turbine has small amount of sand and fine sediment gradation,and the sediment also has small impact on the hydroturbine.The numerical simulation of sedimentation is consistent with the measured data,so it is feasible to use the unsteady one -dimensional model for numerical simulation of the sediment deposition and effectively solve the problem of numerical simulation of the sediment deposition in Yunnan Province.关键词
水电站水库/泥沙淤积/非恒定一维模型Key words
hydropower station reservoir/sedimentation/unsteady one-dimensional model分类
建筑与水利引用本文复制引用
洪振国,李建伟..云南某水电站水库泥沙淤积数值模拟研究[J].水资源与水工程学报,2017,28(5):186-191,6.
