基于Fluent的灌区明渠平板闸门三维流场数值模拟  

Numerical Simulation Based on Fluent about 3D Flow Field of Bulkhead Gate in Small Open Channel of Irrigation

作　　者：王勇[1] 徐宏海[1] 张菊[1] 

机构地区：[1]北方工业大学机电工程学院,北京100144

出　　处：《山西水利科技》2014年第2期46-49,共4页Shanxi Hydrotechnics

摘　　要：为确定水位传感器的安放位置对平板闸门的三维流场进行数值模拟,采用了包含VOF模型的k-ε方程,利用Fluent软件模拟了在不同条件下的三维流场,得到了水位、流速、压力的分布规律。计算结果表明:在闸前0.5~1.5 m及闸后2.5~4.5 m区域内水位、流速和压力均相对稳定。研究结果为合理确定灌区明渠平板闸门计量用水位传感器的位置,提高水位监测精度,提供了理论依据。In order to get the position of the water level sensor, this paper studied the 3D flow field of bulkhead gate using the k-ε equation that contains VOF model, simulated the 3D flow field under different conditions with Fluent, and got the distribution law of the water level, velocity and pressure. The calculation results show that within the region of 0.5m-1.5m before the gate and 2.5m-4.5m behind the gate, the water level, velocity and pressure reach steady. The results could provide theoretical basis for reasonably locating the water level sensor for bulkhead gate in small open channel of irrigation, and for improving monitor accuracy of water level.

关 键 词：明渠流动 平板闸门 VOF模型 自由液面 k-ε模型 

分 类 号：TV663.1[水利工程—水利水电工程] TV135