某抽水蓄能闸门井阻抗系数的数值分析  

Numerical Analysis of Resistance Coefficient of Gate Shaft in A Pumped Storage Station

作　　者：刘聪[1] 杨建东[1] 

机构地区：[1]武汉大学水资源与水电工程国家重点实验室,湖北武汉430072

出　　处：《水电能源科学》2012年第4期126-128,89,共4页Water Resources and Power

摘　　要：采用三维流场计算软件计算了某抽水蓄能电站闸门井阻抗系数,研究了水流流态、分流比对系数的影响,根据计算结果绘出了各种流态下闸门井阻抗系数和分流比的关系曲线;与调压室试验值对比,并选取典型的水流流态,导出纵剖面流态图。结果表明,闸门井阻抗系数与调压室阻抗系数变化规律基本一致。Three-dimensional flow field software is adopted to calculate resistance coefficient of gate shaft in a pumped storage power station. The impact of flow pattern and split-flow ratio on the coefficient is studied. According to the calcu- lation results, a relationship curve between the coefficient and split-flow ratio under various flow patterns is plotted. Com- pared with experimental value of surge chamber and choice of typical flow pattern, the flow pattern graph of longitudinal profile is obtained. The results show that the variation of the gate shaft resistance coefficient accords with the experimental value of surge chamber basically and the calculation result is reasonable.

关 键 词：三维流场 闸门井 分流比 阻抗系数 抽水蓄能电站 

分 类 号：TV743[水利工程—水利水电工程]