港口航道与近海工程2025，Vol.62Issue(5)：7-13,7.DOI:10.16403/j.cnki.ggjs20250502
基于Eulerian-Eulerian模型的疏浚管道输送数值模拟研究
Numerical Simulation of Conveyance of Slurry through Dredging Pipelines Based on Eulerian-Eulerian Model
周禹 1邬德宇 2赵建豪 3周智佳1
作者信息
- 1. 中国海洋大学工程学院,山东 青岛 266100
- 2. 中交天津航道局有限公司,天津 300461
- 3. 中交(天津)生态环保设计研究院有限公司,天津 300202
- 折叠
摘要
Abstract
To elucidate the flow behavior of slurry in the dredging pipelines,an Eulerian-Eulerian model based on granular kinetic theory and combined with a Realizable k-ε turbulence model to carry out a numerical simulation of conveyance of slurry in the horizontal and inclined pipelines by using Fluent software.The influence of pipe inclination angle,particle diameter and slurry concentration on the flow behavior of slurry were analyzed and summarized subject to the effectiveness of the above models.The results revealed a palpable difference in the flow behaviour under the condition of different pipe diameters.Slurry concentration was symmetrically distributed along the horizontal axis but asymmetrically along the vertical axis,with both patterns being strongly affected by the pipe diameters.As for the horizontal pipes,the flow velocity profile along the perpendicular bisector was nearly symmetric,and the peak flow velocity occurred at the mid-point of the perpendicular bisector against the cross-section.As the particle size increased,the flow velocity profile along the perpendicular bisector varied obviously with the change in the pipe inclination angle.The calculation results could serve as a certain theoretical reference and technical guidance for optimizing slurry conveyance and processing technologies in real dredging works.关键词
疏浚/欧拉-欧拉模型/中细砂/倾斜管道/浓度分布Key words
dredging/Eulerian-Eulerian model/medium fine sand/inclined pipe/concentration distribution分类
建筑与水利引用本文复制引用
周禹,邬德宇,赵建豪,周智佳..基于Eulerian-Eulerian模型的疏浚管道输送数值模拟研究[J].港口航道与近海工程,2025,62(5):7-13,7.
