富春江船闸改扩建工程围堰过水水流流场数值模拟  

Numerical Simulation of Flow Filed over Cofferdam on Fuchunjiang Ship Lock Extension Project

作　　者：吴启和[1] 韩继斌[1] 任坤杰[2] 

机构地区：[1]中交第二航务工程局有限公司,武汉430040 [2]长江科学院,武汉430010

出　　处：《三峡大学学报（自然科学版）》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)

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.

关 键 词：围堰 数值模拟 流态 流速 涡量 

分 类 号：TV132.2[水利工程—水力学及河流动力学]