基于CFD的乌江渡水电站地下厂房通风效果模拟分析  

CFD-based Analysis on Simulation of Ventilation in Underground Powerhouse of Wujiangdu Hydropower Station

作　　者：陈日伟 李超顺[2] 刘懋霖 边之豪 王晶[2] CHEN Ri-wei;LI Chao-shun;LIU Mao-lin;BIAN Zhi-hao;WANG Jing(Wujiangdu Hydropower Station,Zunyi 563100,China;School of Civil and Hydraulic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;China-EU Institute for Clean and Renewable Energy,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]乌江渡发电厂,贵州遵义563100 [2]华中科技大学土木与水利工程学院,湖北武汉430074 [3]华中科技大学中欧清洁与可再生能源学院,湖北武汉430074

出　　处：《水电能源科学》2021年第9期131-135,共5页Water Resources and Power

基　　金：国家自然科学基金项目(51679076,51879111)。

摘　　要：为改善乌江渡水电站地下厂房通风效果,通过建立发电机层洞室三维模型及CFD流场仿真模型,依据水电站地下厂房离线测试数据,进行厂房边界条件前处理设定,对厂房包括风速、温度、湿度、氧气浓度等多个指标进行模拟计算。通过设立不同高度及空间方位的截面,获取各指标在时空中的分布规律,分析夏季常用工况的通风效果。仿真结果表明,应重点改造交通洞左侧#3测点送风口的直属管道,增大通风量,强化对流作用。In order to improve the ventilation effect of the underground powerhouse of Wujiangdu Hydropower Station,through the establishment of a three-dimensional model of the generator layer cavern and a CFD flow field simulation model,the pre-processing of the plant boundary conditions was set based on the offline test data of the underground powerhouse of the hydropower station.Many indicators such as wind speed,temperature,humidity and oxygen concentration are simulated.By setting up cross-sections with different heights and spatial orientations,the distribution law of each index in time and space was obtained.Finally,the ventilation effect of common operating conditions in summer was analyzed.The simulation results demonstrate that the direct pipes of the air outlet at the measurement point#3 on the left side of the traffic hole should be renovated to increase the ventilation volume and strengthen the convection effect.

关 键 词：地下厂房 CFD 数值模拟 风速 温湿度 氧气浓度 

分 类 号：TV73[水利工程—水利水电工程]