某水电站压力前池不同模型过渡过程的计算对比  

Calculation and Comparison of Transients of Forebay with Different Models for a Hydropower Station

作　　者：崔伟杰[1] 张健[1] 陈胜[1] 

机构地区：[1]河海大学水利水电学院,南京210098

出　　处：《三峡大学学报（自然科学版）》2016年第4期36-39,共4页Journal of China Three Gorges University：Natural Sciences

基　　金：国家自然科学基金(51379064)

摘　　要：引水明渠作为输水系统的水电站通常设有压力前池.在过渡过程工况,前池内的水位会发生急速变化,影响工程的安全稳定运行,需要计算前池内的最高、最低水位.本文针对某具有长引水明渠的引水式电站的压力前池,分别采用明渠和调压室两种一维模型进行数值模拟.结果表明,在长引水明渠水电站的明渠末端设置的压力前池,两种模型计算的过渡过程结果差别不大.The hydropower station with open channel as division system usually sets forebay. In the condition of transients, the water level in the forebay will change rapidly; and this will influence the safe and stable op- eration of the engineering. The highest and lowest water levels are needed to be calculated. The paper uses two one--dimensional models of open channel and surge chamber respectively to analyze and simulate the transient flow in forebay of a hydropower station with open channel with long diversion channel. The results show that the water level calculated by two different models in forebay which is setted at the end of open channel are similar.

关 键 词：压力前池 过渡过程 明渠 数值模拟 对比 

分 类 号：TV135.3[水利工程—水力学及河流动力学]