摘要
富春江船闸改扩建工程施工时,部分围堰处于枢纽泄洪消能区,围堰附近水流流速大、流态复杂,对施工围堰稳定不利.本文采用带自由表面的三维k-ε水气两相紊流数学模型,模拟过水围堰区域复杂的水流流场,获取围堰附近的流态、流速分布、涡量分布及压力分布规律,为围堰防护设计与施工安全提供依据.
When the Fuchunjiang ship lock extension project is in construction, it is unfavorable for cofferdam stability of the flow with high velocity and complex flow patterns because of part of the cofferdam on flood en- ergy dissipation in the hub area. The complex flow field in the nearby cofferdam is simulated by using three dimensional numerical model which is free surface and k-tturbulent mode. The flow pattern, velocity distribu- tion, vorticity distribution and distribution of pressure around cofferdam are obtained, so as to provide the help for cofferdam design and construction safety.
出处
《三峡大学学报（自然科学版）》
CAS
2016年第4期23-26,共4页
Journal of China Three Gorges University：Natural Sciences
基金
国家自然科学基金项目(51209007)
交通运输部气液技术创新项目(201431542A060)
关键词
围堰
数值模拟
流态
流速
涡量
cofferdam
numerical simulation
flow pattern
flow velocity
vorticity
