摘要
利用调压室水头损失的局部模型试验成果,研究了连接管中水流方向、连接管尺寸以及流量比对具有连接管的阻抗式调压室水头损失系数的影响。研究结果表明,调压室水头损失系数并不是仅与水流方向、连接管尺寸有关的常数,因此在对调压室系统的水力过渡过程计算中,需结合模型试验成果和数值计算结果分析确定调压室水头损失系数。
Based on the partial modeling result of tailrace surge tank,a study on the hydraulic characteristics of the throttled surge tanks with the linking pipe is made by table - lookup calculation and experience formula calculation in respect of water flaw direction in the linking pipe and the effect of pipe diameter and flow ration on the head loss coefficient of the surge tank. The study shows that error does exist in the experiment,and it is necessary to combine the modeling result and numerical calculations for determining the head loss coefficient in transient calculations including surge tank system.
出处
《水利科技与经济》
2005年第10期604-606,共3页
Water Conservancy Science and Technology and Economy
关键词
调压室
模型试验
连接管
水头损失系数
数值计算
surge tank
experimental data
linking pipe
head loss coefficients
numerical calculating
