摘要
为了探究上室体型对调压室内最高涌浪的影响,基于三维VOF方法,对某水电站机组甩全负荷工况下调压室内的涌浪过程进行数值模拟,验证了数值模拟方法的可靠性.研究结果表明:在地形结构等条件允许的情况下,上室断面积越大,调压室内最高涌浪越低.相同断面积的上室,调压室内最高涌浪随长宽比增大而升高,但涨幅不大.当长宽比L/B=8.6时,最高涌浪降低0.07m.本文研究结果为调压室内涌浪过程优化提供依据.
To explore the effect of the upper chamber body structure on the highest surge water level in surge tank, numerical simulation for the process of surge in surge tank of a hydropower station under full load rejec- tion is carried out based on 3D-VOF method. The results show that the surge water level decreases when the section of upper chamber grows larger within the allowable terrain and structure. As for the upper chamber with the same section area, the highest surge water level increases with increment of the ratio of length L to width B; but the increase is little. When L/B=8.6, the highest surge water level decreases by 0.07m. The study results provide a theoretical reference for optimization of surge water level in surge tank.
出处
《三峡大学学报（自然科学版）》
CAS
2017年第1期7-10,共4页
Journal of China Three Gorges University：Natural Sciences
基金
国家自然科学基金(51079051)
关键词
最高涌浪
数值模拟
VOF方法
上室式调压室
体型优化
highest surge water level
numerical simulation
VOF method
upper chamber surge tank
shape optimization
