摘要
结合某水利枢纽泄水系统的水力设计,实验研究了坝中底孔的水力特征,给出了进口段最大压力系数Cpmax,事故平板门门槽水流空化数的估计方法,建议了突扩跌坎后由于水流侧冲击边墙引起的"水翅"高度的计算方法,以及为了保证具有相互贯通的侧空腔与底空腔及良好挑流的泄槽段最小长度与相应挑流鼻坎坎顶高程的确定方法。
Combining with the hydraulic design for the water release system in a certain hydro project, the main hydraulic characteristics directing towards a bottom outlet are＇studied. The calculation methods for the maximum pressure coefficient Cpmax in the inlet section and the cavitation number of the emergency gate slot are given. And the calculation and determination methods for the height of the blowing spray caused by the flow dashed against the side wall, the elevation of the flip bucket top and the minimum length of the chute are also put forward.
出处
《水利与建筑工程学报》
2008年第1期64-66,75,共4页
Journal of Water Resources and Architectural Engineering
关键词
底孔
进口段Cpmax
闸槽空化数
“水翅”
泄槽段最小长度
喀顶高程
bottom outlet
Cpmax in inlet section
cavitation number of gate slot
＂blowing spray＂
minimum length of chute
elevation of bucket top
