动网格技术在水利水电工程局部冲刷中的应用研究
Application Research of Dynamic Grid Technology in Local Erosion of Water Conservancy and Hydropower Engineering
吴彰松 1张巧树 2吴雪萍 3邹路阳4
作者信息
- 1. 云南省水利水电勘测设计研究院,云南 昆明 650000
- 2. 云南省能源研究院有限公司,云南 昆明 650000
- 3. 碧桂园生活服务集团股份有限公司昆明分公司,云南 昆明 650000
- 4. 通用技术昆明机床股份有限公司,云南 昆明 650000
- 折叠
摘要
为预测水利水电工程局部冲刷深度和形态,基于ANSYS Fluent动网格技术,采用弹簧光顺法和局部重构法,结合沙滑模型模拟了床面泥沙的坍塌过程,在此基础上分别对水利水电工程中的圆柱形桥墩局部冲刷、闸坝下游局部冲刷进行了三维数值模拟.并将数值模拟计算得到的局部冲刷坑最大深度和形态与物理模型试验值进行了比较,发现两者吻合较好,可以认为动网格技术能够成功地运用于水利水电工程的局部冲刷深度和形态的预测中.
Abstract
In order to predict the depth and shape of local erosion in water conservancy and hydropower projects,this paper uses ANSYS Fluent dynamic grid technology,spring smoothing method and local reconstruction method,combined with sand slip model to simulate the collapse process of bed sediment.Three dimensional numerical simulations are conducted on the local erosion of cylindrical bridge piers and downstream of gate dams in water conservancy and hydropower projects.And the maximum depth and shape of local erosion pits calculated by numerical simulation are compared with the experimental values of physical models,and it was found that the two are in good agreement.It can be considered that the dynamic grid technology can be successfully applied to predict the depth and shape of local erosion in water conservancy and hydropower projects.
关键词
动网格技术/局部冲刷/三维数值模拟/沙滑模型Key words
dynamic grid technology/local erosion/three dimensional numerical simulation/sandslide model引用本文复制引用
基金项目
云南省创新团队建设专项(2018HC024)
出版年
2024
国家科技期刊平台
NSTL
万方数据