摘要
针对 3台机组合用 1条有压尾水隧洞的矩形阻抗式尾水调压室底部流道的体型进行了优化试验研究 .研究了 3种典型的底部流道体型的水头损失 ,以及机组负荷变化情况下不同的底部流道体型的水头损失与分流比的关系 .结果表明 ,尾水调压室阻抗隔板下设曲线形分岔方案的流态较好 ,与常规无分岔的方案相比 ,减少水头损失约 50 % 。
A model for optimization of the bottom shape of the rectangular orifice surge tank in the tail tunnel used by three units is studied in this paper.Measured are the head losses for three types of bottom shape and the changes of head loss under different loads.The results demonstrate that the curve bifurcation model is the best and its head loss is 50% less than that of the non bifurcation model.The bottom shape recommended can increase the efficiency of power generation significantly.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
2000年第2期92-95,共4页
Journal of Hohai University(Natural Sciences)
关键词
调压室
体型优化
水头损失
分流比
surge tank
optimization model
head loss
discharge rate
bifurcation
